Forty percent: That is the share of annual oceanic carbon dioxide uptake accounted for by the Southern Ocean. Given that oceans comprise Earth's largest carbon sink, that is not an insignificant figure;

Left: Ozone in Earth's stratosphere at an altitude of approximately 12 miles (20 kilometers) in mid-March 2011, near the peak of the 2011 Arctic ozone loss. Right: chlorine monoxide - the primary agent of chemical ozone destruction in the cold polar

New NASA study offers first direct proof that the ozone hole is recovering thanks to the Montreal Protocol treaty and the international ban on CFCs.

While preservation of the planet's dwindling biodiversity itself has rightly grabbed the headlines at the ongoing Convention on Biological Diversity in Japan, Science Insider points out an important geoengineering

There's no doubt that geoengineering brings out passionate emotions both pro and con, as recent debate on TreeHugger about the sort of-moratorium on some research coming out of the Convention on Biological Diversity

Another summary of the potential risks and benefits of ocean iron fertilization--the geoengineering method which proposes seeding oceans with iron so as to stimulate microscopic plants that absorb carbon from the

Another report on another geoengineering method that is likely too risky to try and utterly not cost-effective: Injecting aerosols into the atmosphere to slow warming (which would do absolutely nothing about ocean acidification, by the way).

"The stakes are very high and scientists are not the best people to deal with the social, ethical or political issues that geoengineering raises."

From now on, thirsty visitors can refill their own bottles at water fountains or grab a reusable cup in the cafeteria.

Billions of chopsticks are thrown out each year worldwide. This Vancouver company is trying to turn some of of these into new items for the home.

But is it a pyrrhic victory?

This modern laneway house is now home to a client who wants to look after her aging parents.

The Vancouver architect is famous for "tall wood" but still has a knack for little good wood buildings too.

An old warehouse is transformed into a three-level open office with lots of shared spaces for a tech company in Vancouver.

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.

Some of the most frequently used jargon you’ll want to know before the Paris climate change talks, accompanied by user-friendly definitions.

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

The Clean Seas campaign was launched last week, aimed at eliminating major sources of marine plastic and changing shopping habits.

The United Nations says it's time to overturn the myth that pesticides can feed the world and come up with better, safer ways of producing our food.

The UN Environment Assembly is putting together a "political declaration on pollution," but we need action more than words at this point.

But the United States has opted out.

The Heath Ledger-directed Modest Mouse video for "King Rat," released Tuesday, follows the animated adventures of a ship helmed by whales on the hunt for humans--harpoons and all.Ledger developed the video to draw attention to

The Searaser takes a novel approach to wave energy generation. New owners Ecotricity - pioneers of wind power in Britain - are aiming for mass deployment in the next five years.

A hydropower turbine has the potential to not only create energy, but has also sparked the creation of both a renewable energy company and a renewable energy education program in Maine.

The wave glider created by Iquid Robotics has passed quite a test for robustness. It coasted through the superstorm and provided real time weather data nonstop.

These sand "castles" are not your usual holiday beach creations.

Wave power is the oft-forgotten cousin of solar and wind power. It has huge potential, but it is not quite as far along as the better known sources of clean power, so it tends to be overlooked.

The company says this system is simpler than other wave devices that need to be finely tuned to the waves to pick up their energy.

After a storm hit Tennessee last Sunday and Nashville saw record-shattering rainfall, the Cumberland River swelled to overflowing and the city experienced an epic flood. As soon as it was safe, residents were out

From a $50,000 portable recycled house to a tiny green egg house for Chinese students, TreeHugger has already offered plenty of posts that prove that green living doesn't have to mean high-end LEED certified luxury.

Backyard chickens may be trendy, but in some cities they are still illegal. But that doesn't stop some would-be chicken keepers.

Normally you can't have it both ways, unless you have a member of congress in your pocket.

Simple but striking, this small treehouse retreat was built by hand and furnished with repurposed flea market finds.

Outfitted with smart home tech and lots of storage space for outdoor gear, this small home feels 'just right'.

Solar-powered buoy design seeks to reduce costs for fishermen and the risk of kerosene spills on Lake Victoria.

Help stop the rise of antibiotic resistance by buying a bird that's been raised drug-free.

This week is Carnival of the Green #193 and it's being hosted by The EcoChic, a blog that takes us through the life of a thirty-something mom. She looks for ways to reduce her environmental impact on the Earth while sharing these ideas, products and

This week marks Carnival of the Green #205, and it's being hosted by Pragmatic Environmentalism, a blog that explores urban sustainability. Thanks so much to Brenda Pike, who runs the site, for a last minute Carnival round-up. Through her blog, Brenda

Citizen persistence at measuring and publicizing pollution levels results in a major turnaround by Beijing.

This year's nominees include amazing concept gadgets, biomimicry in robotics, crowd-sourced projects and more. Vote for your favorites here.

Come one, come all, witness The Twittertape Machine that prints a feed of your tweets and mentions on Twitter.

Having a view of green space or access to a garden or park is linked to lower frequency and strength of cravings, study finds.

The oil spill in the Gulf of Mexico reached an important milestone this Tuesday afternoon when BP started their 'static kill' procedure to seal the oil well, and the good news is, that it seems to be working -- so far. In other green news, the

This week's photo roundup includes a sculpture made from living cherry trees, an artist catapulting LEDs into the sky to make stars, and more.

We've featured a lot of treehouses on TreeHugger, but the plans for this one are a little different: Ten cherry trees will be planted in a circle, and pruned and bent over time to form a unique, two story sculpture.

It was pretty much inevitable; the company just couldn't capitalize on the digital revolution.

You can see these magnificent photo portraits of Londoners on a wall or on the web.

I'm hunkered down in Brooklyn waiting for Hurricane Sandy to pass. Curious about what is happening nearby, I'm looking for photos of the flooding. Here's what I've found so far.

These 5 gardens lost ancient and historic trees, and are in need of donations and volunteers to recover from Hurricane Sandy.