A new scientific study could save a whole lot of elephants.

A British activist is trying to reduce her personal carbon footprint to one tonne of CO2 per year. This is very hard.

There are lots of good reasons to buy local, but don't worry about the impact of shipping.

I respond to a recent viral article hating on digital nomads.

The meat vs. veggies debate is a lot more complex than it seems at first glance.

It calls for more support of bikes, walking and transit, banning ICE-powered cars sooner.

Smartphones, laptops, and electric car batteries rely on cobalt, most of which comes from Congolese mines that employ children.

Today is the end of the first week of my book tour for my new book Urban Green. I've crisscrossed North and South Carolina to engage as many people as I can at some of the best schools in the

University of North Texas has build a LEED Platinum stadium to be the envy of other college campuses.

College students make waves for clean energy at IU, UK basketball games.

In a ghost town in the one of the coldest places in the US, lone resident Billy Barr has spent 4 decades recording snowfall … to the enormous delight of scientists.

A young sea turtle found in the Netherlands will be released after a three-year recovery. We also have the search for the "extinct" Javan tiger, Sylvester Stallone's bat cave incident, and more.

The Echo Meter can detect, record and identify the sounds of bats nearby.

Scientists at the National Ignition Facility (NIF) achieve a major breakthrough on the path to the dream of fusion as a clean energy source

Most reports suggest a gradual increase in renewable energy. But don't believe the anti-hype.

For the first time, developing countries outpaced wealthier nations in green energy development.

iGEM team encourages 'materials activists' to build their own biodegradable drones with downloadable do-it-yourself plans.

It's so much nicer to feel a warm natural material in your pocket than cold slippery plastic.

Why can't we all just get along? New campaign humanizes cyclists.

To highlight the accelerating disappearance of Arctic sea ice, this man plans to survive alone on a melting iceberg for up to one year.

This app gives free ad space to deserving charities and NGOs on one of our tech-centric culture's most common screens - our smartphone lock screens.

Michael Thiele is 'rewilding' honeybees in California, returning them to more natural nest environments in order to help them survive.

As scooters and e-bikes proliferate, we need a place to put them.

A new study asked 24 travellers to take this challenge and report back on their experiences.

It could be a lot more than you think, especially if you take the long view...

Need a bicycle basket that is even handier than the classic wicker thing? The Bent Basket covers a variety of carrying needs.

Leading a coalition of investment institutions which managed to include a paragraph on the need for sustainable reporting, Dr. Waygood says this small text can make a difference.

A tree-planting campaign that's as easy as a click, text or tweet seeks to reach a million before December 31.

"Vice President Joe Biden told a South Carolina environmental activist Friday that he opposes a controversial oil pipeline from Canada, but said he is "in the minority" inside the Obama administration."

As we wait for President Obama and the State Department to make a decision on the proposed Keystone XL pipeline, talk seems to have shifted away from why the pipeline should be rejected to what should be done in the event the project is approved.

Douglas Brinkley at Rolling Stone sat down for an hour with Vice President Joe Biden and the topic of climate change made up considerable bulk of the interview. It's worth a read

In the current issue of the The New Yorker, Ryan Lizza tells the story of how Tom Steyer, "a fifty-six-year-old billionaire" has thrown his clout and money behind the effort to stop the Keystone XL pipeline.

Steve Horn reports that in addition to expediting the southern leg, Executive Order 13604 also led to the expediting of 48 other oil pipeline projects.

The New Yorker's Ryan Lizza spoke with Fresh Air's Dave Davies about the Keystone XL pipeline and how because of the government shutdown, now is a good time to take action on climate change.

Was focusing on Keystone XL a mistake? Recent debates on that issue within the environmentalist community have caused some controversy. Here's a look at what people are saying.

There are a number of reasons the fight for Keystone XL is likely to drag on.

The actor told protestors last week that her red coat "is the last article of clothing" she'll ever buy.

NACTO lays out a vision for how autonomous vehicles, and technology more broadly, can work in service of safe, sustainable, equitable, vibrant cities.

When it comes to a clean and green beauty routine, less is more.

Tell me, what is it you plan to do with your one wild and precious life? -- Mary Oliver

Honeybees in France are producing unusual-colored honey. Their sweet tooth may be to blame.

What a way to master the arts of carving and design: one a day for a year.

Can you bear to look at these intimate and frightening photos of grizzly bears.

It's what we have called dematerialization, as all that is solid melts into apps

"Radiative barriers" may work well in space, but not so well down here.

Beck nails it again with the Automated Nailing Head.

In a documentary by Line Halvorsen, Schwermer invites everyone to join her cash-free lifestyle. What would happen if we all did that?

Enough fretting about how kids use their devices. What about parents?

Or, how I'm trying to raise little adults, not incompetent kids.

Our new mobile version is designed for the small screen.