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Histone recognition by “reader” modules serves as a fundamental mechanism in epigenetic regulation. Previous studies have shown that Spindlin1 is a reader of histone H3K4me3 as well as “K4me3-R8me2a” and promotes transcription of rDNA or Wnt/TCF4 target genes. Here we show that Spindlin1 also acts as a potent reader of histone H3 “K4me3-K9me3/2” bivalent methylation pattern. Calorimetric titration revealed a binding affinity of 16 nm between Spindlin1 and H3 “K4me3-K9me3” peptide, which is one to three orders of magnitude stronger than most other histone readout events at peptide level. Structural studies revealed concurrent recognition of H3K4me3 and H3K9me3/2 by aromatic pockets 2 and 1 of Spindlin1, respectively. Epigenomic profiling studies showed that Spindlin1 colocalizes with both H3K4me3 and H3K9me3 peaks in a subset of genes enriched in biological processes of transcription and its regulation. Moreover, the distribution of Spindlin1 peaks is primarily associated with H3K4me3 but not H3K9me3, which suggests that Spindlin1 is a downstream effector of H3K4me3 generated in heterochromatic regions. Collectively, our work calls attention to an intriguing function of Spindlin1 as a potent H3 “K4me3-K9me3/2” bivalent mark reader, thereby balancing gene expression and silencing in H3K9me3/2-enriched regions.

The functional mechanisms of multidomain proteins often exploit interdomain interactions, or “cross-talk.” An example is human Pin1, an essential mitotic regulator consisting of a Trp–Trp (WW) domain flexibly tethered to a peptidyl-prolyl isomerase (PPIase) domain, resulting in interdomain interactions important for Pin1 function. Substrate binding to the WW domain alters its transient contacts with the PPIase domain via means that are only partially understood. Accordingly, we have investigated Pin1 interdomain interactions using NMR paramagnetic relaxation enhancement (PRE) and molecular dynamics (MD) simulations. The PREs show that apo-Pin1 samples interdomain contacts beyond the range suggested by previous structural studies. They further show that substrate binding to the WW domain simultaneously alters interdomain separation and the internal conformation of the WW domain. A 4.5-μs all-atom MD simulation of apo-Pin1 suggests that the fluctuations of interdomain distances are correlated with fluctuations of WW domain interresidue contacts involved in substrate binding. Thus, the interdomain/WW domain conformations sampled by apo-Pin1 may already include a range of conformations appropriate for binding Pin1's numerous substrates. The proposed coupling between intra-/interdomain conformational fluctuations is a consequence of the dynamic modular architecture of Pin1. Such modular architecture is common among cell-cycle proteins; thus, the WW–PPIase domain cross-talk mechanisms of Pin1 may be relevant for their mechanisms as well.

Phospholipase Cε (PLCε) is activated downstream of G protein–coupled receptors and receptor tyrosine kinases through direct interactions with small GTPases, including Rap1A and Ras. Although Ras has been reported to allosterically activate the lipase, it is not known whether Rap1A has the same ability or what its molecular mechanism might be. Rap1A activates PLCε in response to the stimulation of β-adrenergic receptors, translocating the complex to the perinuclear membrane. Because the C-terminal Ras association (RA2) domain of PLCε was proposed to the primary binding site for Rap1A, we first confirmed using purified proteins that the RA2 domain is indeed essential for activation by Rap1A. However, we also showed that the PLCε pleckstrin homology (PH) domain and first two EF hands (EF1/2) are required for Rap1A activation and identified hydrophobic residues on the surface of the RA2 domain that are also necessary. Small-angle X-ray scattering showed that Rap1A binding induces and stabilizes discrete conformational states in PLCε variants that can be activated by the GTPase. These data, together with the recent structure of a catalytically active fragment of PLCε, provide the first evidence that Rap1A, and by extension Ras, allosterically activate the lipase by promoting and stabilizing interactions between the RA2 domain and the PLCε core.

In animals, the response to chronic hypoxia is mediated by prolyl hydroxylases (PHDs) that regulate the levels of hypoxia-inducible transcription factor α (HIFα). PHD homologues exist in other types of eukaryotes and prokaryotes where they act on non HIF substrates. To gain insight into the factors underlying different PHD substrates and properties, we carried out biochemical and biophysical studies on PHD homologues from the cellular slime mold, Dictyostelium discoideum, and the protozoan parasite, Toxoplasma gondii, both lacking HIF. The respective prolyl-hydroxylases (DdPhyA and TgPhyA) catalyze prolyl-hydroxylation of S-phase kinase-associated protein 1 (Skp1), a reaction enabling adaptation to different dioxygen availability. Assays with full-length Skp1 substrates reveal substantial differences in the kinetic properties of DdPhyA and TgPhyA, both with respect to each other and compared with human PHD2; consistent with cellular studies, TgPhyA is more active at low dioxygen concentrations than DdPhyA. TgSkp1 is a DdPhyA substrate and DdSkp1 is a TgPhyA substrate. No cross-reactivity was detected between DdPhyA/TgPhyA substrates and human PHD2. The human Skp1 E147P variant is a DdPhyA and TgPhyA substrate, suggesting some retention of ancestral interactions. Crystallographic analysis of DdPhyA enables comparisons with homologues from humans, Trichoplax adhaerens, and prokaryotes, informing on differences in mobile elements involved in substrate binding and catalysis. In DdPhyA, two mobile loops that enclose substrates in the PHDs are conserved, but the C-terminal helix of the PHDs is strikingly absent. The combined results support the proposal that PHD homologues have evolved kinetic and structural features suited to their specific sensing roles.

DNA polymerases are today used throughout scientific research, biotechnology, and medicine, in part for their ability to interact with unnatural forms of DNA created by synthetic biologists. Here especially, natural DNA polymerases often do not have the “performance specifications” needed for transformative technologies. This creates a need for science-guided rational (or semi-rational) engineering to identify variants that replicate unnatural base pairs (UBPs), unnatural backbones, tags, or other evolutionarily novel features of unnatural DNA. In this review, we provide a brief overview of the chemistry and properties of replicative DNA polymerases and their evolved variants, focusing on the Klenow fragment of Taq DNA polymerase (Klentaq). We describe comparative structural, enzymatic, and molecular dynamics studies of WT and Klentaq variants, complexed with natural or noncanonical substrates. Combining these methods provides insight into how specific amino acid substitutions distant from the active site in a Klentaq DNA polymerase variant (ZP Klentaq) contribute to its ability to replicate UBPs with improved efficiency compared with Klentaq. This approach can therefore serve to guide any future rational engineering of replicative DNA polymerases.

Rhodopsin is a canonical class A photosensitive G protein–coupled receptor (GPCR), yet relatively few pharmaceutical agents targeting this visual receptor have been identified, in part due to the unique characteristics of its light-sensitive, covalently bound retinal ligands. Rhodopsin becomes activated when light isomerizes 11-cis-retinal into an agonist, all-trans-retinal (ATR), which enables the receptor to activate its G protein. We have previously demonstrated that, despite being covalently bound, ATR can display properties of equilibrium binding, yet how this is accomplished is unknown. Here, we describe a new approach for both identifying compounds that can activate and attenuate rhodopsin and testing the hypothesis that opsin binds retinal in equilibrium. Our method uses opsin-based fluorescent sensors, which directly report the formation of active receptor conformations by detecting the binding of G protein or arrestin fragments that have been fused onto the receptor's C terminus. We show that these biosensors can be used to monitor equilibrium binding of the agonist, ATR, as well as the noncovalent binding of β-ionone, an antagonist for G protein activation. Finally, we use these novel biosensors to observe ATR release from an activated, unlabeled receptor and its subsequent transfer to the sensor in real time. Taken together, these data support the retinal equilibrium binding hypothesis. The approach we describe should prove directly translatable to other GPCRs, providing a new tool for ligand discovery and mutant characterization.

Pyruvate kinase muscle isoform 2 (PKM2) is a key glycolytic enzyme and transcriptional coactivator and is critical for tumor metabolism. In cancer cells, native tetrameric PKM2 is phosphorylated or acetylated, which initiates a switch to a dimeric/monomeric form that translocates into the nucleus, causing oncogene transcription. However, it is not known how these post-translational modifications (PTMs) disrupt the oligomeric state of PKM2. We explored this question via crystallographic and biophysical analyses of PKM2 mutants containing residues that mimic phosphorylation and acetylation. We find that the PTMs elicit major structural reorganization of the fructose 1,6-bisphosphate (FBP), an allosteric activator, binding site, impacting the interaction with FBP and causing a disruption in oligomerization. To gain insight into how these modifications might cause unique outcomes in cancer cells, we examined the impact of increasing the intracellular pH (pHi) from ∼7.1 (in normal cells) to ∼7.5 (in cancer cells). Biochemical studies of WT PKM2 (wtPKM2) and the two mimetic variants demonstrated that the activity decreases as the pH is increased from 7.0 to 8.0, and wtPKM2 is optimally active and amenable to FBP-mediated allosteric regulation at pHi 7.5. However, the PTM mimetics exist as a mixture of tetramer and dimer, indicating that physiologically dimeric fraction is important and might be necessary for the modified PKM2 to translocate into the nucleus. Thus, our findings provide insight into how PTMs and pH regulate PKM2 and offer a broader understanding of its intricate allosteric regulation mechanism by phosphorylation or acetylation.

Defining discontinuous antigenic epitopes remains a substantial challenge, as exemplified by the case of lipid transfer polyproteins, which are common pollen allergens. Hydrogen/deuterium exchange monitored by NMR can be used to map epitopes onto folded protein surfaces, but only if the complex rapidly dissociates. Modifying the standard NMR-exchange measurement to detect substoichiometric complexes overcomes this time scale limitation and provides new insights into recognition of lipid transfer polyprotein by antibodies. In the future, this new and exciting development should see broad application to a range of tight macromolecular interactions.

Myosins generate force and motion by precisely coordinating their mechanical and chemical cycles, but the nature and timing of this coordination remains controversial. We utilized a FRET approach to examine the kinetics of structural changes in the force-generating lever arm in myosin V. We directly compared the FRET results with single-molecule mechanical events examined by optical trapping. We introduced a mutation (S217A) in the conserved switch I region of the active site to examine how myosin couples structural changes in the actin- and nucleotide-binding regions with force generation. Specifically, S217A enhanced the maximum rate of lever arm priming (recovery stroke) while slowing ATP hydrolysis, demonstrating that it uncouples these two steps. We determined that the mutation dramatically slows both actin-induced rotation of the lever arm (power stroke) and phosphate release (≥10-fold), whereas our simulations suggest that the maximum rate of both steps is unchanged by the mutation. Time-resolved FRET revealed that the structure of the pre– and post–power stroke conformations and mole fractions of these conformations were not altered by the mutation. Optical trapping results demonstrated that S217A does not dramatically alter unitary displacements or slow the working stroke rate constant, consistent with the mutation disrupting an actin-induced conformational change prior to the power stroke. We propose that communication between the actin- and nucleotide-binding regions of myosin assures a proper actin-binding interface and active site have formed before producing a power stroke. Variability in this coupling is likely crucial for mediating motor-based functions such as muscle contraction and intracellular transport.

Centrioles are key eukaryotic organelles that are responsible for the formation of cilia and flagella, and for organizing the microtubule network and the mitotic spindle in animals. Centriole assembly requires oligomerization of the essential protein spindle assembly abnormal 6 (SAS-6), which forms a structural scaffold templating the organization of further organelle components. A dimerization interaction between SAS-6 N-terminal “head” domains was previously shown to be essential for protein oligomerization in vitro and for function in centriole assembly. Here, we developed a pharmacophore model allowing us to assemble a library of low-molecular-weight ligands predicted to bind the SAS-6 head domain and inhibit protein oligomerization. We demonstrate using NMR spectroscopy that a ligand from this family binds at the head domain dimerization site of algae, nematode, and human SAS-6 variants, but also that another ligand specifically recognizes human SAS-6. Atomistic molecular dynamics simulations starting from SAS-6 head domain crystallographic structures, including that of the human head domain which we now resolve, suggest that ligand specificity derives from favorable Van der Waals interactions with a hydrophobic cavity at the dimerization site.

RNA-protein interfaces control key replication events during the HIV-1 life cycle. The viral trans-activator of transcription (Tat) protein uses an archetypal arginine-rich motif (ARM) to recruit the host positive transcription elongation factor b (pTEFb) complex onto the viral trans-activation response (TAR) RNA, leading to activation of HIV transcription. Efforts to block this interaction have stimulated production of biologics designed to disrupt this essential RNA-protein interface. Here, we present four co-crystal structures of lab-evolved TAR-binding proteins (TBPs) in complex with HIV-1 TAR. Our results reveal that high-affinity binding requires a distinct sequence and spacing of arginines within a specific β2-β3 hairpin loop that arose during selection. Although loops with as many as five arginines were analyzed, only three arginines could bind simultaneously with major-groove guanines. Amino acids that promote backbone interactions within the β2-β3 loop were also observed to be important for high-affinity interactions. Based on structural and affinity analyses, we designed two cyclic peptide mimics of the TAR-binding β2-β3 loop sequences present in two high-affinity TBPs (KD values of 4.2 ± 0.3 and 3.0 ± 0.3 nm). Our efforts yielded low-molecular weight compounds that bind TAR with low micromolar affinity (KD values ranging from 3.6 to 22 μm). Significantly, one cyclic compound within this series blocked binding of the Tat-ARM peptide to TAR in solution assays, whereas its linear counterpart did not. Overall, this work provides insight into protein-mediated TAR recognition and lays the ground for the development of cyclic peptide inhibitors of a vital HIV-1 RNA-protein interaction.

Erythromycin-resistance methyltransferases are SAM dependent Rossmann fold methyltransferases that convert A2058 of 23S rRNA to m6 2A2058. This modification sterically blocks binding of several classes of antibiotics to 23S rRNA, resulting in a multidrug-resistant phenotype in bacteria expressing the enzyme. ErmC is an erythromycin resistance methyltransferase found in many Gram-positive pathogens, whereas ErmE is found in the soil bacterium that biosynthesizes erythromycin. Whether ErmC and ErmE, which possess only 24% sequence identity, use similar structural elements for rRNA substrate recognition and positioning is not known. To investigate this question, we used structural data from related proteins to guide site-saturation mutagenesis of key residues and characterized selected variants by antibiotic susceptibility testing, single turnover kinetics, and RNA affinity–binding assays. We demonstrate that residues in α4, α5, and the α5-α6 linker are essential for methyltransferase function, including an aromatic residue on α4 that likely forms stacking interactions with the substrate adenosine and basic residues in α5 and the α5-α6 linker that likely mediate conformational rearrangements in the protein and cognate rRNA upon interaction. The functional studies led us to a new structural model for the ErmC or ErmE-rRNA complex.

V. G. Lysov
Trans. Moscow Math. Soc. 83 (), 291-304.
Abstract, references and article information

E. A. Rakhmanov and S. P. Suetin
Trans. Moscow Math. Soc. 83 (), 269-290.
Abstract, references and article information

A. I. Aptekarev and M. L. Yattselev
Trans. Moscow Math. Soc. 83 (), 251-268.
Abstract, references and article information

L. Oeding
Trans. Moscow Math. Soc. 83 (), 227-250.
Abstract, references and article information

A. V. Domrina
Trans. Moscow Math. Soc. 83 (), 201-215.
Abstract, references and article information

A. Kh. Khachatryan, Kh. A. Khachatryan and A. Zh. Narimanyan
Trans. Moscow Math. Soc. 83 (), 183-200.
Abstract, references and article information

A. V. Silantyev
Trans. Moscow Math. Soc. 83 (), 75-149.
Abstract, references and article information

N. R. Ikonomov and S. P. Suetin
Trans. Moscow Math. Soc. 83 (), 33-54.
Abstract, references and article information

A. P. Starovoitov and N. V. Ryabchenko
Trans. Moscow Math. Soc. 83 (), 15-31.
Abstract, references and article information

M. A. Stepanova
Trans. Moscow Math. Soc. 83 (), 1-13.
Abstract, references and article information

Minerals and Metals for a Low-Carbon Future: Implications for Developing Countries 30 October 2017 — 5:00PM TO 8:00PM Anonymous (not verified) 13 October 2017 Chatham House, London

This roundtable will explore two sides of minerals and metals for a low-carbon future - the growing demand for metals required for low-carbon technology and the technological and policy innovations that will be required to manage the carbon footprint of the mining sector and its wider energy and industrial linkages. Based around a presentation and scenarios developed by the World Bank, this roundtable discussion will assess which strategic metals will likely rise in demand in order to deliver a low-carbon future, before exploring the possible implications for resource-rich developing countries. In particular, what does a growing demand of minerals for a clean energy future mean for governments and industry, and how might developing countries benefit from this trend? What impact might growth of the mining sector have on a sustainable and climate-smart development? Can renewable energy and other clean tech innovations in the mining industry help reduce the carbon footprint of the sector and related industries, and under what circumstances? And how fit-for-purpose are current donor approaches to the mining sector in an increasingly carbon-constrained world?

Attendance at this event is by invitation only.

Mining and the Circular Economy: Implications for the Minerals and Metals Industries 6 November 2017 — 4:00PM TO 5:30PM Anonymous (not verified) 31 October 2017 Chatham House, London

Visualizing the Data: The Evolution of Trade Tensions in Metals and Minerals Markets 18 January 2018 — 4:30PM TO 6:00PM Anonymous (not verified) 19 December 2017 Chatham House, London

Over the past decade, producer countries such as South Africa, Zambia, Indonesia, the DRC and, most recently, Tanzania have restricted exports of unprocessed precious metals, copper, nickel, cobalt and other minerals in an attempt to support, or create, downstream processing industries and jobs or increase revenues. These moves have invariably created tensions with trading partners. Research suggests that export restrictions are not the best way to achieve such policy objectives and can instead harm the producer country’s economy and undermine the functioning of international metals and minerals.

Drawing on OECD and Chatham House research on resource trade, the speaker will present analysis and data visualizations exploring the drivers of past export restrictions and their political and economic impacts. They will also consider how the drivers of ‘resource nationalist measures’ are changing, whether and where export restrictions might present strategic and economic risks in the current context, and the extent to which producer and consumer governments and international governance mechanisms are prepared to address them.

Attendance at this event is by invitation only.

Fossil Fuels Expert Roundtable: How Solar is Shaping the Energy Transition 1 June 2018 — 9:00AM TO 10:30AM Anonymous (not verified) 22 May 2018 Chatham House, London

As global temperatures rise and extreme weather events multiply, doubts over the reality and imminence of climate change have dissipated. Despite this, there is a clear lack of urgency by governments to the approaching crisis. At this event, Prem Shankar Jha will set out what he believes are the three main causes for this inaction.

Furthermore, he will argue that catastrophic climate change is imminent, but even if it weren’t, the risk is too great to ignore. Only a complete shift from fossil fuels by 2070 at the latest would provide reasonable certainty of avoiding irreversible consequences. This transition is not only possible but the technologies to enable it were harnessed four to nine decades ago – and all of them draw their primary energy from the sun. These technologies are already capable of delivering electricity, transport fuels, and petrochemicals at prices that are competitive with the current delivered cost of electricity in the US and Western Europe. So what is holding up the energy shift?

Attendance at this event is by invitation only.

A New Era for China: Implications for the Global Mining and Metals Industries 18 June 2018 — 9:00AM TO 10:30AM Anonymous (not verified) 8 June 2018 Chatham House, London

Since the turn of the century, China’s demand for resources has dominated global headlines. It’s rapid demand growth through the early 2000s sparked the beginning of the commodities ‘super cycle’, and encouraged a growing Chinese presence in international mining, and in global metals and minerals markets. More recently, its transition toward the ‘new normal’ of slower but higher quality growth has underpinned the sudden slowdown in global commodities demand.

Drawing on China’s domestic ambitions, as set out in the 19th party congress, and on its wider strategic ambitions through the Belt and Road Initiative, the speaker will set out his thoughts on China’s next era of growth, and its likely implications for international mining investment and global metals and minerals markets.

Flexible Distribution Systems: New Services, Actors and Technologies 4 September 2018 — 9:00AM TO 10:30AM Anonymous (not verified) 31 July 2018 Chatham House, London

The pace of the energy transition is accelerating. Solar and wind are dramatically falling in cost and displacing fossil fuel generators. Simultaneously, the rapid uptake of electric vehicles and battery storage systems are beginning to send shock-waves through the electricity sector.

As the proportion of distributed energy resources (DERs) connected to the distribution network grows, a significant opportunity is beginning to present itself. What if the concerns of renewable integration and associated costs could be solved by the smart integration of these DERs?

By properly valuing the services DERs can provide, actively managing the distribution system and creating new market places, might a truly renewable electricity system capable of supporting the electrification of heat and transport be possible?

During this roundtable, Andrew Scobie, CEO of Faraday Grid, will provide an overview of the challenges and opportunities faced within the distribution network and explain why the current system is no longer fit for purpose.

This is the inaugural event in the Energy Transitions Roundtable (ETR) series.

Korea's New Energy Policy and Implications for LNG Imports 3 October 2018 — 9:00AM TO 10:30AM Anonymous (not verified) 17 September 2018 Chatham House | 10 St James's Square | London | SW1Y 4LE

The new energy policy of Moon Jae-In’s administration aims to swing radically from coal and nuclear towards renewables and LNG for power generation. During the last 12 months the priority given to the expansion of renewable energy has been overwhelming and the support for the expansion of gas not as strong as many observers had expected. The 13th gas supply and demand plan announced in Spring 2018 confirmed the trend. Based on this projection, Professor K. Paik will discuss how this new energy policy will affect Korea’s LNG imports strategy and what are the implications of Korea’s northern policy towards this LNG supply strategy and pipeline gas imports to the Korean Peninsula.

Attendance at this event is by invitation only.

The Electric Vehicle Revolution: Impacts on Oil Economies and Industry 24 January 2019 — 8:15AM TO 9:45AM Anonymous (not verified) 3 December 2018 Chatham House | 10 St James's Square | London | SW1Y 4LE

Electric vehicle (EV) deployment is gathering pace: the Norwegian government thinks that EV subsidies will be unnecessary by 2025 as they reach parity with diesel and petrol vehicles.

China has stipulated that EVs comprise 12 per cent of vehicle sales by 2020 while more governments are committing to banning diesel and petrol vehicles.

These developments are expected to be replicated as urban air pollution rises up the political agenda while technological developments and falling costs have given rise to ambitious forecasts on the increase in the deployment of EVs and the demise of the internal combustion engine.

Considering this, the presentations and initial discussion focus on:

• The influence of new technologies on the automotive landscape, including autonomous vehicles.
• How the automotive and oil companies are adjusting their business models to accommodate and encourage the rise in EVs.
• The risks and opportunities for the deployment of EVs for incumbents and new market actors.
• The role of government for example in public procurement and infrastructure development.
• The potential for modal shift and its impact on oil demand.

The discussion then seeks to explore the need for benchmarks of change including data and metrics to understand the changing risk landscape and the implications for different actors.

Finally, the discussion focuses on the speed of transformation and what this means for existing and new market actors.

The Impact of Brexit on Energy Transformation in the UK and EU 28 March 2019 — 8:15AM TO 9:45AM Anonymous (not verified) 3 December 2018 Chatham House | 10 St James's Square | London | SW1Y 4LE

The UK’s decision to leave the EU will fundamentally reshape many of the UK’s policies and its relations with countries around the world. For energy and climate, the changes could be significant and will need to be managed carefully to secure ongoing investment, stable energy prices and ambitious climate objectives. The UK’s departure will also affect the balance of political support for climate and energy policies with the EU institutions and potentially impact upon regional initiatives.

This roundtable will discuss:

• The impact on the energy sector of Brexit during the transition period through until December 2020 including the operation of interconnectors and access to the Internal energy market, ongoing engagement in European research collaboration and the replacement of European financial resources.
• The possible opportunities and risks for the UK’s energy sector in 2021 and beyond.
• The implications of Brexit on the EU’s energy and climate policy.

The roundtable will discuss the role of the public and business in shaping the future deal as it will need to be ratified by the parliaments of all member states.

Attendance at this event is by invitation only.

Power Sector Transformation, New Market Dynamics and Geopolitical Implications 7 November 2018 — 8:00AM TO 9:30AM Anonymous (not verified) 6 December 2018 Chatham House | 10 St James's Square | London | SW1Y 4LE

The global electricity sector is experiencing profound change due to a confluence of technological innovation, environmental policies and regulatory reform. The effect is most obvious in the EU28, Australia and parts of North America.

However, this is just the beginning and the success of the next phase of electricity sector transformations hinges on enhancing system flexibility to facilitate unhindered low-cost deployment of renewables. It remains to be seen how utilities will seek to navigate this second phase of electricity transformations.

This session starts with a presentation and discussion that focuses on:

• Public and private sector risks of the transformation of the power sector, changes in generation mix and their implications for supply chain, employments and investment patterns.
• The role of government and the regulatory framework in light of changing market structure, new entrants and big data.
• Wider geopolitical issues including the implication for fossil fuel producers and the rise in demand for new materials and changes in land use.
• The possible implications on the power sector on the electrification of heat and transport.

The discussion then moves to the speed of transformation and what this means for existing and new market actors.

The Global Implications of China's Energy Revolution 4 March 2019 — 9:00AM TO 10:30AM Anonymous (not verified) 7 February 2019 Chatham House | 10 St James's Square | London | SW1Y 4LE

Ten years ago, it would have been difficult to believe that China – the world’s largest greenhouse gas emitter – would be one of the global leaders in some elements of clean energy development and deployment. With increasing air pollution and predominantly coal-fired power generation fueled by a booming economy and population, China has had to rethink its approach to environmental protection and climate mitigation.

Strong government signalling and national policies have led to the construction of the world’s largest fleets, wind farms and solar photovoltaic arrays in an effort to reduce national GDP intensities of energy and CO2 emissions. How has the availability of large amounts of capital, and the number of state-owned companies with soft budgetary constraints, helped contribute to this?

Against this backdrop, this event will consider how China must re-evaluate its approach to energy security – coal made up the majority of the country’s energy in 2016, followed by oil, of which 65 per cent had to be imported – despite the country being one of the pioneers of renewable energy. This event will look at how, in delivering on its clean energy objectives, China could redefine the traditional energy security paradox and in fact become more resilient to previously overlooked vulnerabilities.

Plant-based 'Meat' and Cultured Meat: Revolutionizing the Livestock Sector 10 April 2019 — 4:00PM TO 5:30PM Anonymous (not verified) 14 March 2019 Chatham House | 10 St James's Square | London | SW1Y 4LE

Consensus is building across the scientific, environmental and public health communities that a radical shift away from excessive meat-eating patterns is urgently needed to tackle the unsustainability of the livestock sector. Recognizing the scale of the challenge ahead, public policymakers, civil society and innovators have increasingly sought to prompt shifts in consumer food choices – away from the most resource-intensive meat products and towards more sustainable alternatives.

Meat analogues – plant-based ‘meat’ and cultured meat also known as ‘lab-grown’ meat – mark a departure from traditional meat alternatives. Both are intended to be indistinguishable from – and in the case of cultured meat biologically equivalent to – animal-derived meat and are marketed principally at meat-eaters. Innovation and investment in meat analogues have increased significantly, but the direction and pace of growth in the meat analogue industry will depend upon a multitude of factors, including public acceptance, civil society support and incumbent industry responses.

This event will explore the challenges of scaling up production and generating demand for meat alternatives. It will also look at the ways policymakers in the UK and EU can impact the direction of the industry while examining what factors will influence consumer acceptance of plant-based ‘meat’ and cultured meat as substitutes for animal-derived meat.

Driven to Extraction: Can Sand Mining be Sustainable? 5 June 2019 — 1:30PM TO 3:00PM Anonymous (not verified) 29 April 2019 Chatham House | 10 St James's Square | London | SW1Y 4LE

Sino-Russian Gas Cooperation: Power of Siberia I and II and Implications for Global LNG Supplies 27 November 2019 — 8:30AM TO 9:30AM Anonymous (not verified) 19 November 2019 Chatham House | 10 St James's Square | London | SW1Y 4LE

In a new event in the Sustainable Transitions series, the speaker will present an update of Sino-Russian gas cooperation.

To give a comprehensive account of their impact on global liquefied natural gas (LNG) supplies, he will discuss the following points:

• Gas is scheduled to start flowing from the Power of Siberia I (POS) on 2 December 2019. But what is the background of development of POS 1 and what is its current status and prospects?
• What are the chances of exporting gas through the proposed Altai pipeline? Why is the Mongolia export route so significant? And how will it affect the Central Asian Republics and in particular Turkmenistan’s gas export to China?
• What are the implications of both POS I and Altai gas via Mongolia route in the context of global LNG supply?
• What are the prospects for multilateral pipeline gas cooperation in northeast Asia?
• What are the implications for other Arctic onshore LNG supply, in particular, for Novatek’s Yamal LNG and Arctic LNG 1 and 2 to China on top of POS 1 and Altai gas?

Attendance at this event is by invitation only.

Net Zero and Beyond: What Role for Bioenergy with Carbon Capture and Storage? 23 January 2020 — 8:30AM TO 10:00AM Anonymous (not verified) 6 January 2020 Chatham House | 10 St James's Square | London | SW1Y 4LE

In the context of the feasibility of reducing greenhouse gas emissions to net zero, policymakers are beginning to pay more attention to options for removing carbon dioxide from the atmosphere. A wide range of potential carbon dioxide removal (CDR) options are currently being discussed and modelled though the most prominent among them are bioenergy with carbon capture and storage (BECCS) and afforestation and reforestation.

There are many reasons to question the reliance on BECCS assumed in the models including the carbon balances achievable, its substantial needs for land, water and other inputs and technically and economically viable carbon capture and storage technologies.

This meeting will examine the potentials and challenges of BECCS in the context of other CDR and emissions abatement options. It will discuss the requisite policy and regulatory frameworks to minimize sustainability and socio-political risks of CDR approaches while also avoiding overshooting climate goals.

Attendance at this event is by invitation only.

Energy transitions

Analysing and understanding the implications of the global energy transition, and what it means for states, communities and people facing these changes.

The world is undergoing an energy transformation, and at its heart is the need to reduce energy-related carbon emissions to limit climate change. But decarbonization of the energy sector – moving away from fossil fuels towards low carbon sources of energy – requires urgent action on a global scale.

Our work focuses on three primary components:

• Clean and renewable energy
• Energy access
• Extractives

This transition will be enabled by technological innovations, the market, improvements to policy and regulatory frameworks, and by increasing awareness – and actions – from consumers all over the world.

Impact of the US Election on Global Climate Politics 25 November 2020 — 1:00PM TO 2:00PM Anonymous (not verified) 16 November 2020 Online

Panellists discuss how Joe Biden’s victory will impact international efforts to tackle climate change. Will climate finally become a common area for global cooperation?

Joe Biden’s victory over Donald Trump is already having a positive impact on international efforts to tackle climate change. Leaders from across the world, including the UK, Canada, Australia and Fiji, have used their first messages to the President-elect to draw attention to the climate crisis.

Biden has promised to re-join the global community in its commitment to the Paris Agreement – but this could be the easy part. More difficult will be whether and how Biden is able to deliver his ambitious climate plan, and how effectively he is able to integrate climate change into foreign policy efforts and national security strategies.

Global climate action has also moved forward in the last four years. The European Union recently pledged to become climate neutral by 2050, and China, Japan and South Korea have committed to achieving carbon neutral economies.

How will the US re-enter this global landscape of distributed leadership and what difficulties does it face? Will the US be willing to work within a competitive partnership with the EU and China? How will Biden’s win change the dynamic of COP26 next year? 

Climate action and gender equality: Can we close the gap on one without the other? 8 March 2021 — 2:30PM TO 4:00PM Anonymous (not verified) 15 February 2021 Online

In partnership with the COP26 presidency, policymakers and experts examine the interrelationship between gender equality and climate action, and highlight innovative examples of policy and practice from around the world.

Marking International Women’s Day, this event organized by the COP26 presidency in partnership with Chatham House, will explore how gender equality and climate action go hand-in-hand. The agreement of the Gender Action Plan (GAP) at COP25 sent the message that the time for gender-responsive climate action is now.

This will be a unique opportunity to hear from policymakers and civil society leaders discussing whether enough is being done, as well as highlighting cutting-edge work around the world and suggesting what the future could hold.

The event will be livestreamed on this event page.

Youth voices on climate action 22 April 2021 — 12:30PM TO 2:00PM Anonymous (not verified) 22 March 2021 Online

To celebrate Earth Day, youth activists, local change-makers, innovators and entrepreneurs discuss opportunities and challenges for youth-led climate activism.

Young people will bear the brunt of the intensifying impacts of climate change over time. Facing this challenge, youth around the world have emerged at the forefront of climate activism at an unprecedented scale.

School strikes, marches, and declarations complement youth engagement in diplomacy, technology, science, and law. Providing a platform for young people involved in climate action at the local, national and global levels is essential to promote collaboration, generate new policy ideas, and demand accountability from political and business leaders.

Panellists engage in critical conversation about COP26; global leadership in climate mitigation, adaptation, and finance; and how to develop the full potential of youth-led global initiatives going forward.

From local to global: A roadmap for US climate action 14 April 2021 — 6:30PM TO 8:00PM Anonymous (not verified) 28 March 2021 Online

Ahead of Biden’s Earth Day Summit, panellists discuss a range of climate issues, from city-level climate management to the international security implications of climate deals.

On their first day in office, the Biden-Harris administration sent a strong message to Americans and allies by rejoining the Paris Agreement. Experienced climate and environmental leaders were appointed to senior leadership roles as part of a ‘whole of government approach’ to climate action.

Although decisive action is welcomed by many Americans and international partners, the divided domestic perspectives on climate and a changed international landscape pose significant challenges.

Ahead of the Earth Day Summit on April 22, an event hosted by Joe Biden to mark America’s formal return to global climate talks, panellists discuss a range of climate issues, from city-level climate management to the international security implications of climate deals.

• How will post-COVID domestic priorities and policy influence the international approach of the US to climate action?
• How will US policy, both foreign and domestic, need to respond to the security and geopolitical elements posed by climate change?
• What actions are needed during the upcoming Earth Day Summit for the US to establish credibility as a climate leader?
• What shape are key debates taking on US-China climate relations ahead of COP 26, and how might climate issues be approached in relation to wider geopolitical tensions?

Prioritizing equity and justice in climate action 30 June 2021 — 11:00AM TO 12:00PM Anonymous (not verified) 10 June 2021 Online

London Climate Action Week event: Why understanding equity and justice is essential to the ability to meaningfully inform climate politics.

Citizen-led climate activism is demonstrating the need to think about climate change ‘not just as a problem for science to solve’ but also as a problem of equity, human rights and justice.

The disproportionate impacts of climate change on the poor and the marginalized across the world means that understanding equity and justice is essential for the ability to meaningfully inform climate politics.

Excluding these issues risks ignoring, or intentionally omitting, the consequences of policies, tools and frameworks on those who are most likely to face the severe costs of any climate action or inaction.

In a pivotal year for climate decision-making, this event explores the necessity of equity and justice in climate action and how the world can move the political conversation to one that is more inclusive.

The speakers explore how communities themselves articulate the justice dimensions of climate change and how fairness can create a greener future for current and future generations.

This event is being hosted as a part of Strengthening Climate Diplomacy, a series of events from Chatham House during London Climate Action Week 2021.

Cities as climate leaders: Progress and ambition 1 December 2021 — 12:00PM TO 1:00PM Anonymous (not verified) 16 November 2021 Online

This panel discusses the progress cities have already made, whether progress at COP26 was enough, and what more needs to be done to scale action and ambition internationally.

Cities are critical to tackling the pressing environmental challenges of our time. While they now account for an estimated 75 per cent of global CO2 emissions, cities also offer a unique opportunity for devolved leadership on climate action. At the recent COP26, some significant progress was made in elevating cities’ position on climate action with a flurry of announcements and commitments.

For example, more than 1,000 cities are now committed to the Cities Race to Zero and C40’s Clean Construction Declaration saw multiple cities committing to at least halving emissions from initial construction of buildings by 2030. A raft of financing commitments were also made to improve urban resilience in the face of climate change.

This builds on existing momentum before COP26. Over 50 world cities are now on track to meet Paris Agreement and the Marrakech Partnership is further enabling collaboration between governments and cities within the UNFCCC processes.

Therefore, how we design, build, govern and use our urban places will be a key factor for decarbonization and climate change adaptation.

On the back of COP26, this panel brings together leaders from across urban development sectors to discuss the progress cities have already made, whether progress at COP26 was enough, and what more needs to be done to scale action and ambition internationally. 

A deep dive into loss and damage solutions 8 February 2022 — 1:00PM TO 2:15PM Anonymous (not verified) 31 January 2022 Online

This second event of our loss and damage series cuts through polarized debate by bringing together international experts to discuss innovative legal and financial approaches.

This event will focus on a deep dive into constructive solutions and progress made to address loss and damage.

Following the first event of this two-part series, ‘Loss and Damage – where are we now and what happens next’, this event focuses on a deep dive into constructive solutions and progress made to address loss and damage.

Loss and damage refers to harms and destruction caused by climate change impacts that cannot be avoided through mitigation or adaptation. While it has gained increasing recognition in international climate change negotiations, turning the concept of loss and damage into tangible action for climate-vulnerable countries has been contentious.

Loss and damage is interwoven with issues of fairness and equity. The issue is highly disputed due to its connection with the historical responsibility of developed countries in causing climate change, as well as associated calls for compensation from developing countries.

At COP26, Scotland became the first government to pledge funds for loss and damage for countries in the Global South. However, most climate-vulnerable countries left disappointed by the failure of the Glasgow Climate Pact to secure the establishment of a dedicated loss and damage financing facility.

Developing countries have made it clear that they will continue to push for a new financing facility in the Glasgow Dialogue, a set of international discussions on loss and damage kicking off in June. The Environment and Society Discussion Series is hosting two events on loss and damage ahead of that date.

This second event convenes a deep dive into the progress and potential on loss and damage solutions, while also examining the hurdles that are still to overcome to make loss and damage support a reality.

Feminist solutions to the climate crisis 8 March 2022 — 11:00AM TO 12:00PM Anonymous (not verified) 1 March 2022 Online

This International Women’s Day panel explores intersectional feminist approaches to solving the climate crisis.

Gender inequality and climate change are closely intertwined. Due to their different and unequal social roles and status, women, girls and people of marginalised genders are disproportionately affected by climate change impacts, also differentiated by factors such as age, race, ability and location.

They are also leading innovative solutions to climate change at all levels, especially in frontline communities. Yet as the Glasgow Women’s Leadership statement highlighted at COP26, there is still a lack of momentum for prioritising their knowledge, tools and leadership in climate policy and action.  

This panel considers what feminist approaches can bring to climate change communication and movement building, spotlighting a range of local and regional gender-responsive climate initiatives. It also discusses concrete examples of feminist and gender-responsive policies to address climate change, such as the Feminist Green New Deal.

The panel highlights the critically important work being carried out by diverse feminist activists and researchers, and how the audience can centre gender and social equality in their work on climate change.  

Food system transformation: A blind spot for climate and biodiversity action? 20 October 2022 — 12:00PM TO 1:00PM Anonymous (not verified) 5 October 2022 Chatham House and Online

How can COP27 and COP15 accelerate the agenda for sustainable food systems and land use?

Tackling the dual crises of climate change and biodiversity loss requires extraordinary levels of action at an unprecedented speed. Agriculture is the biggest user of land, the biggest source of methane emissions, a major contributor to total greenhouse gas emissions and the leading driver of biodiversity loss.

Anything short of a food system transformation puts climate and biodiversity objectives in peril. However, governments have not yet produced credible pathways and strong policies for tackling our growing ‘foodprint’ – the negative impacts of what we grow and eat.

In advance of COP27 in Sharm El-Sheikh for climate and COP15 in Montreal for biodiversity, Chatham House has published a new briefing paper which examines aligning food systems with climate and biodiversity targets.

The paper reviews the climate and biodiversity policy landscape to 2030, with a focus on land-based aspects and the inclusion of food and agriculture. The paper highlights serious conflicts between the impacts of the food system and goals to protect and restore biodiversity and mitigate climate change.

In light of this, opportunities for joined-up action on food, climate and biodiversity are identified, including three key steps for countries to take this decade to produce suitably ambitious and effective policies across the climate–biodiversity–food nexus.

This event brings together leading voices from the international policy arenas for climate and biodiversity to react to the briefing paper and discuss how COP27 and COP15 can accelerate the agenda for sustainable food systems and land use.