The United Nations Environment Programme and goodwill ambassador Don Cheadle have selected a winner. See the video here.

The actor known for The Vampire Diaries and Lost joined today's World Environment Day celebrations in Barbados.

The host country of the United Nations World Environment day is working to protect its natural resources and adapt to climate change.

The UN Environment Program takes aim at unsustainable consumption in 2015.

Design a logo for this year’s World Environment Day and win a trip to Milan, Italy.

In anticipation of World Environment Day on June 5, the United Nations Environment Programme is hosting a blogging competition to raise awareness about this year’s theme of sustainable consumption.

The soccer star arrived in an electric retro-fit Fiat Panda and attended a cooking demonstration.

We'd need another Canada-sized chunk of fertile land, scientists say, in order to meet those requirements.

Peter Root and Mary Thompson, both only 34 years old, were on an epic bike trip around the world. They were killed in a road accident last Wednesday in Chachoengsao Province, Thailand, near Bangkok.

Idaho is working hard to create an official dark sky reserve, which would make it the first in the US and the 12th in the world.

The quest to find a last-ditch techno-fix for climate change is more intense and globe-spanning than you possibly could have imagined. See for yourself.

The Economist puts Melbourne in number 1 spot, Vancouver in 3. They're not.

Worried about wood? Brock Commons Tallwood House is probably one of the safest buildings anywhere.

The United Nations' Intergovernmental Panel on Climate Change (IPCC) was expected to delivery its fifth Assessment Report (AR5) next month, but over the past weekend, a draft of that report was leaked to Reuters, which reported the early findings.

The World Happiness Report 2015 takes a look at well-being for the good of social progress and public policy.

The world had a bunch of big goals it didn't succeed in making by this year. Now the UN is creating an even bigger set of goals - finally taking the environment into account. But how to educate the world about the goals? Turn to comics.

The UN Environment Programme kicks off its official celebration of World Environment Day in Milan.

A visual breakdown of emissions by country and industry.

Ahead of the U.N. climate negotiations in Paris, hundreds of marches were held around the world to call for strong climate action.

There are good reasons for why the United Nations named 2016 the 'Year of Pulses'.

In a few years people around the world, including you, may be sitting on a different kind of toilet.

A new kind of hybrid generator promises to double the power output for the same surface area, by also harvesting energy from ocean currents.

When you think about it, it's really Moon power!

16 years ago, Horrace Burges had a divine vision, a calling from heaven. And, like the ark-crafting Noah before him, Horrace picked up a hammer and built a large wooden structure of his own--the world's largest tree house. At 10

A new report by Barclays Capital suggests a dark side to the building boom in places like China, India, and Turkey.

A "moot court" will be held over Twitter for the first time ever, and students from 5 major Canadian law schools will argue an environmental law.

When it comes to walking the green and sustainable walk, Greenfield really puts it all on the line.

Kaden + Lager architects are building SKAIO, ten storeys of hybrid timber construction.

The marketing and branding services group BBMG just reported on his year's annual survey of green consumer attitudes. Questions were asked to determine recognition of 13 of

Urban farming was way more than a fad in the 1940s.

In honor of World Water Day, here are the sobering numbers behind the billions of people living without safe water.

Photo: Toyota Ouch We all knew it was coming, but now it's official. Toyota has formally filed a voluntary recall for 437,000 hybrid vehicles worldwide. Most of those are third generation Prius hybrids, but they're also recalling the few Prius PHEV out

There is a man dressed in a silver lamé suit jumping about with extraordinary energy in a wind blown field in West Wales. His name is Steve Edge and his motto in life is:

Let that sink in for a second: Over a period of 18 hours and 40 minutes on September 29th, Muhammed Yousuf Jamil, a Lance Naik (Lance Corporal) in the Pakistani Army singlehandedly

In a recent show of solidarity with the forests and one another, more than a thousand villagers gathered to simultaneously give their beloved trees a loving squeeze.

A recently opened power plant in the Nevada desert uses two types of renewable energy.

The map above is the first illustration of worldwide imbalances in the use of phosphorus, a key component of fertilizers and an essential plant nutrient. "Typically, people either worry

Chevron Toxico: Chevron Produces Phony Online News Coverage to Spread Misinformation about Ecuador Disaster "To promote a misinformation campaign about its role in the oil contamination of a pristine area of the rainforest in Ecuador, Chevron recently

Good Guy Leo strikes again!

The shopping world is rife with corruption and exploitation, and while it would be lovely for companies to mend their evil ways, that's highly unlikely. In the meantime, Etsy provides a decent alternative for conscientious shoppers.

Wool is an ideal material for footwear, with its odor-reducing and moisture-wicking properties, so why hasn't it caught on?

Bike-powered devices often feel like hippy gimmicks. Yet for some communities, they offer an important glimpse of more resilient technology.

The project will also include molten salt energy storage for 24 hour solar power.

While the world chases solar generating windows, we see how to do solar generating walls.

This WiFi- and Bluetooth-enabled smart bulb features plug-and-play functionality, doesn't require a central smart home hub, and is designed to last for "up to 50,000 hours."

It is estimated that around 100 elephants are being killed each day by poachers to meet the growing demand for ivory in Asia.

It may lead to as many as 20,000 passive houses being built over the next five years.

Now that the Toyota International Teacher Program has ended, I've decided to turn the spotlight on a few of the teachers involved. First came the middle school teachers. Next up, a couple of the high school-teaching

The scandal du jour is unquestionably the phone-hacking debacle surrounding Rupert Murdoch's News of the World tabloid -- which, until it was canned due to allegations of myriad criminal deeds, was England's top-selling

Let's hope cows don't get seasick.