One design attempts to deal with the problem of plastic bottle caps -- which often get discarded rather than recycled.

Vibrantly colored wire is saved from the landfill and woven into recycled fan cages to produce these fresh pieces of furniture.

Plastic waste has been diverted from the city's shoreline to create a cost-effective, green space alternative.

This is Paris' largest mural, made with hand-folded origami paper birds and a bit of spraypaint.

Founded by two sons of farmers, this company wants to grow farm-fresh food -- out of shipping containers.

...or does this augur the final breakdown of civilization?

A modern but retro-flavored makeover for the endearing bicycle rickshaw by Filipino designer Kenneth Cobonpue.

10 coal plants in Chicago, Ohio, Pennsylvania, and New Jersey will be shut down sooner than expected.

A 18-foot-wide helix turbine specially designed for urban spaces has been installed on the roof of Progressive Field, ready to begin churning out energy on opening day.

The basketball star has a soft spot for bikes, which he says gave him important freedom as a kid.

This innovative billboard does double duty: advertising for a university's engineering program while producing much-needed clean drinking water for local communities.

Created for adventurers by adventurers, this unique hotel in Peru features three sleeping pods that guests must climb up to.

There's more than one way to go up in a small space, and this is one smart alternative.

The latest figures from the EIA show renewable energy sources overtaking nuclear power in the US, through the first nine months of 2011.

That's what a lot of people are saying as new pollution rules for 2020 get closer.

The kit includes an LED headlight and tail light and a rugged case that attaches a smartphone to the handlebars.

A piece of classic playground equipment gets a clean tech makeover.

The small device is perfect for tiny homes or those wanting a convenient, yet electricity-free option.

Studio Schneemann, together with the Kenyan initiative Uniqueco, collect and turn wasted flip flops from the beach into colourful and squichy furniture and lighting.

A UK offset company launches a world-first partnership to finance Life-Straw water purifiers in Africa.

Fresh Cargo's new fair-trade Maasai Treads line combines locally sourced and recycled materials with indigenous sandal-making skills to create footwear that make a stylish, sustainable statement.

The estimated 80% of Kenyans that are not on a grid rely solely on kerosene to light their homes. But a pay-as-you-go home solar system promises to deliver clean, affordable lighting to rural areas.

Thousands of abandoned flipflops turn up on African shores--Ocean Sole recycles them into something good.

Flying can be a divisive topic when it comes to curbing emissions, but airplanes have other environmental impacts too.

This waste-to-resource project not only produces a less smoky and long-burning fire, but could also help improve health and sanitation outcomes.

It's the first plant plant of its kind in the states that generates electricity from the temperature differences in the ocean.

Nuclear power generation in the United States is falling. It plateaued between 2007 and 2010—before falling more than 4 percent over the last two years. Projections for 2013 show a further 1 percent drop.

On Monday (Sunday locally), Japan switched off the last of its operating nuclear reactors and became 100% nuclear-free.

Most of us alive today owe a debt to those who avoided nuclear war in years past, and sadly, there were many occasions when that was necessary.

Tons of jellyfish clog a water intake pipe at the Oskarshamn power plant in Sweden, forcing operators to shut down the reactor.

In China, wind power is leaving nuclear behind. Electricity output from China’s wind farms exceeded that from its nuclear plants for the first time in 2012, by a narrow margin. Then in 2013, wind pulled away—outdoing nuclear by 22 percent.

Nuclear power is so controversial; an engineer working on the Bruce Nuclear plant gives his point of view.

MIT design cuts fusion reactor down to a size that would be more cost effective and could be built in five years

It's a job even too tough for robots.

The technology turns the problem of nuclear waste into a source of safe nuclear energy.

Instead of building giant concrete buildings filled with uranium, why not build smaller energy-efficient buildings filled with people.

Eben Weiss, the Bike Snob, is an unexpected source for this proposal to save the environment.

A look at our favorite posts from our sister site.

The Guardian's George Monbiot talks about climate deniers, junk science, and the need for nuclear.

The material could also one day charge our devices.

As a result of half a century of planning, Copenhagen has achieved a fabulous cycling goal - during the morning rush hour more bikes and mopeds pound the inner city streets than personal cars and buses. Just a bit more than a third of inhabitants get

We've written about e-paper here and while the idea seems nifty, it's hard not to think that improving online readers might be the best option rather than adding another electronic gadget to the overladen waste stream. But in a new study from the

Toronto, a city rated as one of the most livable in the world by The

The SolPad Mobile device offers a scaled-up solar charging and battery solution for both home and off-grid applications.

In tribute to the region's salt lake, the architects of this unique restaurant used salt as an eco-friendly building material.

This bowl-like, double-roof design helps to collect rainwater before it evaporates, and also provides more shade for buildings in arid regions.

It's good news... but we shouldn't be eating tuna at all.

Don't let artist Agustina Woodgate -- who says stuffing is "like looking into the soul" -- near your favourite stuffed teddy bear.

A mother's fight to protect her children and her tribe

Our photo of the day comes from the rainforest of Ecuador.