Talk about a lose-lose situation: On one hand, not taking any action to repair the hole would allow harmful UV radiation to percolate through; on the other hand, helping to accelerate its recovery could strengthen global warming by

Image credit: Purdue University photo/Shepson Lab digg_url = 'http://www.treehugger.com/files/2009/12/beautiful-sweaty-snowflakes-dissolve-polar-ozone.php';Snowflakes, we have seen, are beautiful and diverse but they are not inert byproducts of cold

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

Ben Richmond at Motherboard highlights a climate change success story.

Among the more high risk methods of geoengineering, methods that reflect sunlight away from the Earth to counteract temperature rise are right up there in terms of potential unintended consequences. Well, a new piece of

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

It may have also been done under falsely obtained consent...

Because the iron dumped in the ocean off British Columbia wasn't dumped as waste, it didn't violate international law.

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

They may not be the answer to the housing crisis, but they certainly are wonderful little homes.

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

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

A massive public-private partnership pledges over $1 billion to cut deforestation and mitigate climate change.

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

Who wins this year's crown of contentment? The results are in for the UN's World Happiness Report 2016.

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

Fashion designer and Planet Green contributor Cree McCree has found a source for pelts to use in her fashions that is arguably one of the most sustainable - nutria, a large invasive rodent. The animals are killed by hunters and

An ad by the European Fur Breeders' Association will not be allowed to run again after the advertising watchdog, ASA, ruled it to be misleading.

Architects, engineers, landscape architects and urban planners all have a role to play and should be acting now.

But alas, nobody seems to listen to cycling commissioners in the UK.

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.

This promising source of clean energy is facing an uphill battle.

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

The Norwegian ship has been given a new clean energy life.

Sad Anniversary digg_url = 'http://www.treehugger.com/files/2009/12/one-year-later-tva-toxic-coal-ash-spill-tennessee.php';A year ago, a massive coal ash spill took place in Tennessee. About 5.4 million cubic yards of ash ended up in a river and

Regardless of the outcome of high profile public debate--viz Waterkeeper Bobby Kennedy Jr v. Dirty Coal Don Blankenship smackdown tomorrow night at the University of Charleston--or vehement protest from the likes of youth

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

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.

Mattresses have plenty of reusable materials, but most recyclers don't want them. Landfills don't like them either. But a Tennessee nonprofit does.

Would you let corporations decide how climate science gets taught in your kids' classroom? That's what's happening in Tennessee.

Woops.

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.

Do you plan it where there is lots of room, or do you put it where there is good transit accessibility?

These "plug-and-play" donkeys, equipped with solar panels, allow sheepherders to catch up on the news and socializing while out on their rounds.

Thousands of pairs of unwanted eyewear are collected and transformed into a unique, twinkling facade for an Istanbul museum.

There has been endless discussion of the the outcome of the COP15 conference. Here is another positive note (book) from the group This Place09. It is an art and Twitter project that sought to convey personal thoughts about

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.

It's an all-natural TreeHugger-approved carbon capture and storage plan.

We still have to reduce our carbon emissions.

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

An isolated winter scene beats out the competition in the annual awards ceremony.

Everywhere you look for the next week in London there is an arty billboard.

Who doesn't love a picture of a bicyclist reading a book on top of a bashed up car?

TreeHugger Founder Graham Hill stopped by the TED Conference recently to outline his LifeEdited project—and explain why a keen ability to edit will be the most important skill of the next century.

Step 1: The idea of a car that runs on compost. Step 2: Implementation of a car that runs on compost. We're half done.