Humans are causing irreversible damage to the planet from burning fossil fuels, the biggest ever study of the available science concluded in a report designed to spur the fight against climate change.

October was a spooky month for clean energy stocks. My benchmark Powershares Wilderhill Clean Energy Index (PBW) cringed down 2.9 percent like the young Supergirl who jumped when a mechanical ghost startled her at my door Haloween night.

President Barack Obama pledged deeper U.S. cuts in greenhouse-gas emissions and China will for the first time set a target for capping carbon emissions under an agreement between the world’s two biggest economies.

President Barack Obama will pledge $3 billion to a United Nations climate-change fund that’s intended to help poor nations boost renewable energy and counter the ill effects of global warming.

The clean energy revolution is now, and the U.S. Energy Department is stepping up its commitment to help innovators commercialize their best ideas. At the recent Industry Growth Forum (IGF) in Denver, Colorado, Assistant Secretary for Energy Efficiency and Renewable Energy David Danielson announced the new Lab-Corps program to accelerate the transfer of clean energy technologies from the national laboratories to the marketplace, so that game-changing innovations don't languish for lack of money and equipment.

The Western States Petroleum Association (WSPA) — whose members include Chevron, ExxonMobil, Shell, ConocoPhillips, BP, and others — was caught red-handed late last month when a leaked internal presentation revealed a coordinated campaign to stomp out climate and clean energy progress in California, Oregon and Washington by propping up over 15 front groups that purport to represent the views of concerned citizens and the broader business community.

Let's review some notable news headlines from the month of November.

Shinzo Abe’s re-election as prime minister risks undercutting Japan’s commitment to clean energy at a time when incentives are under review and the nation’s utilities say they can’t accommodate capacity already planned.

The online community of readers who visit RenewableEnergyWorld.com is an important aspect of the news and information that we offer renewable energy stakeholders. We often post news that we feel will get people to view important topics from new angles, offering insights and opinions about technology, policy and more. Often that leads to engaging and informative discussions that add even more value to the article that we have posted.

At the close of each year, we like to take a look back to see which stories made an impact on our readers. This year's most read articles show the many twists and turns that the industry took this year and reveal interesting trends for us as editors and for other industry insiders.

In May of 2014, Speaker of the House John Boehner responded to a climate change question with, “listen, I’m not qualified to debate the science over climate change. I am astute to understand that every proposal that has come out of this administration to deal with climate change involves hurting our economy and killing American jobs. That can’t be the prescription for dealing with changes to our climate.” Speaker Boehner is not the only one reluctant to enter into the debate on climate change. In a March interview Mitch McConnell responded to a climate change remark with, “For everybody who thinks it's warming, I can find somebody who thinks it isn't…”

The last two months have not been kind to clean energy stocks. Most commentators attribute the weakness to declining oil prices and the Republicans' strong showing in the midterm elections.

For the past 13 years, Clean Edge has published the annual Clean Energy Trends report that has sized the global market for solar, wind, and biofuels and tracked everything from venture capital and stock market activity to total global investments. This year, instead of issuing one single report, we'll be producing infographics, tables, charts, and webinars throughout the year – so be on the lookout in the coming weeks and months.

President Obama has been under intense scrutiny for what he would do about climate change ever since he was elected in 2008. Part of that scrutiny takes place during his State of the Union Speech, when renewable energy proponents search for key words about solar and wind energy and count how often he mentions "climate change."

Clean energy investments in India increased to $7.9 billion last year and are expected to surpass $10 billion in 2015.

The UN climate conference in Lima set the stage for Paris in 2015. Next year’s accord is to provide a working, albeit not a final, answer to the question: Is it possible to keep global warming at or below the 2 degree Celsius limit? This limit is considered the boundary beyond which the negative climatic, economic and social consequences of climate change are thought to become intolerably severe and potentially irreversible.

A tool only has value if it’s used. For example, you could be the sort of person who’s set a goal of wanting to exercise more. If someone gives you a nifty little Fitbit to help you do that, and you never open the box, how useful, then, is this little device? The same is true about smart energy management solutions: good tools exist, but whether it’s calories or energy use that you want to cut, at some point those helpful devices need to be unpacked.

Germany’s utilities, battered by the country’s shift to wind turbines and solar panels, would be glad to sell you a power plant on the cheap. They’ll even pack it up and ship it to another country.

The Obama administration is proposing a $4 billion fund to reward states that exceed cuts in greenhouse-gas emissions, and wants Congress to back steeper royalty rates for oil, gas and coal extraction from public land.

California’s bet on green energy is paying off, with clean technology companies creating more jobs and investing more money than competitors in any other state.

The recent dramatic plunge in oil and natural gas prices, to their lowest level since the global recession in 2009, has some observers worried about the effect on clean tech. Conventional wisdom has it that renewables have a tougher time competing when fossil fuels are cheap, making grid parity (in the case of natural gas-fired electricity) more elusive for solar and wind power.

2015 got off to a rocky start for both the broad market in general, as well as clean energy.

Labor, business, and environmental leaders have formed a unique coalition that will urge Illinois lawmakers to pass new standards for energy efficiency and renewable energy, leading to tens of thousands of new, local jobs.

Cleantech investing has taken quite a hit in recent years. Last year, CBS News highlighted the “cleantech crash” on U.S. primetime television, and Bloomberg New Energy Finance, a Bloomberg-owned energy data firm, has tracked the multi-year decline in cleantech investing. However, there are additional trends that tell another side of the cleantech story and suggest innovation and hope for a low-cost, low-carbon future are far from gone.

In a crammed Washington conference room last week, speaker after speaker seemed to apologize for their ‘broken record’ talking points as Bloomberg New Energy Finance and the Business Council for Sustainable Energy unveiled their annual Factbook. But, of course, they were only being honest — like 2013 before it, 2014 had been an unprecedented year for clean energy.

Last year the U.S. Environmental Protection Agency (EPA) proposed its aggressive Clean Power Plan (CPP), which calls to reduce carbon emissions 30 percent by 2030 over 2005 levels. States are required to submit reduction plans that can include increasing renewables, efficiency, and cap and trade programs by June 2016.

When I worked at the New York Attorney General's Office, we sued coal-fired power plants because their air pollution was making people sick. But in some towns, I saw that the reliance on coal really had people in a bind. The coal plant was making them sick, but it was also a major tax generator for the town. If the plant closed, the town might have to lay off teachers and cops, in addition to losing the plant jobs.

Apple and Google have changed our lives forever, both because of their technological innovations and sheer size as global corporations. Now, they’re aiming to reshape the energy landscape.

After a rough start to the year, My Ten Clean Energy Stocks for 2015 posted a strong recovery in February.

Policies favoring clean energy and increased competition would normally dim prospects for existing producers. Not in Chile, where foreign investors are driving a renewable boom at a time of surging returns by local utilities.

Business leaders have an important decision to make this year: to continue operating under the status quo or to join the list of successful companies creating a more sustainable future by contracting or investing in renewable energy and making a positive impact on their brand, customers, employees and bottom line.

Following the conclusion of the United Nations climate negotiations in Lima, Peru, last December, a busy schedule of breakout sessions has begun for Latin American business and political leaders in early 2015.

The U.K. company planning the world’s first tidal-lagoon power station said its next plant may generate electricity at almost half the price.

U.K. electricity from low-carbon sources accounted for almost a quarter of the country’s generation in the fourth quarter as Drax Group Plc converted a second coal-power plant to burn wood.

Mexico has become the first developing nation to formally promise to cut its global-warming pollution, a potential milestone in efforts to reach a worldwide agreement on tackling climate change.

The proposed U.S. commitment to tackling climate change in support of a new international climate agreement is a serious and achievable plan that demonstrates the United States is ready to take significant action. Coming today, eight months before the UNFCCC Conference of the Parties in Paris this December, known as COP 21, the U.S. submission adds momentum toglobal climate negotiations and should help spur other countries to act.

My Ten Clean Energy Stocks for 2015 model portfolio added a second month to its winning streak, with a 6.1 percent gain for the month and a 5.7 percent gain for the year, despite a continued drag by the strong dollar. If measured in terms of the companies' local currencies, the portfolio would have been up 7.5 percent for the month and 10.5 percent for the quarter or year to date. For comparison, the broad universe of US small cap stocks rose 1.5 percent for the month and 4.0 percent for quarter, as measured by IWM, the Russell 2000 index ETF.

Researchers at Yale have unveiled a new interactive map that estimates public opinion on global warming right down to the county level.

Global investment in clean energy slumped 15 percent in the first quarter to the lowest level in two years because of a decline in wind and utility-scale projects.

Political deadlock over Australia’s clean energy future is prompting companies such as Vestas Wind Systems A/S and Acciona SA to increasingly turn to rival markets for growth.

Brazil will increase the use of renewable energy, target zero net deforestation and push for low-carbon agriculture as part of its climate proposal, Environment Minister Izabella Teixeira said in an interview.

Last June, the Environmental Protection Agency (EPA) proposed the first ever national carbon pollution standards for existing power plants. Fossil fuel-fired power plants account for almost 40% of U.S. carbon dioxide emissions, making them the largest source of greenhouse gas emissions in the nation and one of the single largest categories of greenhouse gas sources in the world.

Japan anticipates that by 2030 clean energy such as solar and hydro will generate slightly more of the nation’s electricity than nuclear power plants.

The World Bank indicated in its new report "Building Competitive Green Industries: The Climate and Clean Technology Opportunity for Developing Countries" that small and medium-sized enterprises (SMEs) in developing countries are set to undergo significant growth and create more jobs in the field of clean technology. Anabel Gonzalez, senior director for the World Bank's Global Practice on Trade and Competitiveness, said developing home-grown clean-tech industries will help developing countries more effectively increase the adoption of low-cost clean energy and drive sustainable economic development.

European Union negotiators are endorsing an accelerated overhaul of the bloc’s carbon market after the price of emission rights fell to levels that fail to deter polluters.

The surprise Conservative victory in the recent UK elections have some worrying about the future of renewable and climate progress, but officials are now calming those fears.

With the UK general election now over and a majority Conservative Party government in place, the re-elected Prime Minister David Cameron has now named key members of the government charged with steering the UK’s clean energy policy over the coming years.

Last week, Canada has announced its contribution to the global effort to reduce greenhouse gases by announcing its post-2020 target. The target announced today is off-track to the 80 percent cut by 2050 they committed to in 2009 and significantly higher than the U.S. target. They also announced a series of new measures, but failed to address their largest source of growing emissions — tar sands.

A new government analysis of President Barack Obama’s signature effort to fight climate change affirms what critics suspected: the proposal could further weaken an already battered coal industry.

In West Virginia, where workers have harvested coal seams for centuries, Pope Francis’ new warning about the risks of fossil fuels will find skepticism even among the faithful.