These photos reveal the horror of our disposable, consumerist culture and how it's ruining the most beautiful places on Earth.

Researchers have developed a chip that can run off the low voltage deep within the inner ear.

Sure, you can buy one or you could put your DIY skills to the test and make one with materials you have on hand.

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

A new technology developed by Korean researchers uses ultra-thin, flexible materials to generate electricity from body heat.

We often write about technologies that harness energy from your steps. Here's how you can make your own piezoelectric sneakers at home.

Nanotechnology breakthroughs have lead to a successful prototype of a device that could charge your cell phone with ambient noise or the conversations of users.

The same inventor who brought us the body heat-powered flashlight is at it again.

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

Could this be even more encouraging than a FitBit to get up and walk around?

Forget plugging in your phone to charge, soon the battery could stay topped off from swipes and typing.

It goes from bland plastic to a thing of beauty.

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

"The Ministry of Energy has insisted that they need this energy. What we are questioning is—how was the agreement reached, what is the cost of purchasing this power?"

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.

The approved measure ups fines from $480 to $120,000, and jail time from 2 years to 15 years.

A new report calls for international collaboration to fight the crime organizations behind the illegal trade in wood and wildlife.

Kenya, Uganda and Tanzania are banding together to combat unlawful timber products and curb deforestation.

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 was shot from "sea to summit" in Hawaii Volcanoes National Park, one of the most dynamic landscapes on Earth.

On Monday, a molasses pipeline (yes, that's a thing!) leaked 1,400 tons -- 233,000 gallons -- of molasses into Hawaii's Honolulu Harbor and it has turned into a killer mess with no quick solution.

It's not quite as dramatic as it sounds. It's simply a good demonstration of the power of regenerative braking!

This endangered Hawaiian monk seal was photographed at the Poipu Beach Park in Kauai.

There’s some good news about the endangered Hawaiian monk seal.

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

It took three years, but Hōkūle’a made the impressive journey using only ancient Polynesian navigational methods.

More than two years after the nuclear disaster at Fukushima, Japan, the situation is worse than ever.

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.

If your price doesn't reflect the true cost of your product, then there's no such thing as a free market.

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.

Can a rare metal travel without a passport?

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

A look at some recent posts on our sister site that might interest TreeHuggers.

A roundup of some posts from our sister site.

A look at our favorite posts from our sister site.

And a really nice solar decathlon winner.

And more blaming the millennials, robots and boomers and kitchens are exhuasting.

From mislabelling to plastic contamination, eating fish isn't as safe or healthy as most diners would like to believe.

Why does this not surprise me?

Tangled in fishing line with things looking grim, the story of Frito's rescue is inspiring all around.

The latest report on the state of the world's fisheries paints a depressing picture of the seafood industry.

Greenpeace's annual survey of national retailers' progress on sustainable seafood reveals the leaders and the losers.