In A.D. 536, a volcanic eruption sent a thick haze into the air that blocked the sun over Europe, the Middle East and some of Asia for 18 months.

If dinosaurs had telescopes and had pointed them at Saturn, they might have seen a ringless world.

Anjouan is an island between Africa and Madagascar littered with sedimentary rocks called quartzite that don't belong there. Are they a chunk of Gondwana?

New research suggests it will take millions of years for extinct species to return to Earth.

Scientists say Zealandia meets all the requirements to qualify as a continent, even though 94% of it is underwater.

The space agency's $650 million Neo Surveillance Mission is designed to spot killer asteroids.

NASA astronauts make history with an all-female spacewalk — now that the spacesuit problem is resolved.

From nearsightedness to bone mass, a trip to the International Space System has a notable effect on astronauts' bodies.

Trying to stay cool while obeying his own stringent vehicle idling restrictions, New York City Mayor Michael Bloomberg enlists security detail to install a full

Arctic sea ice, the white cap that covers the watery northern edge of the planet, has melted back to a record low level.

Toyota has donated 4,500 free trees for this March's giveaway for New York City residents.

This much CO2 hasn't filled the planet's atmosphere since the Pliocene Epoch 3 million years ago — long before modern humans existed.

This surprising discovery won't be enough to stop climate change, but it will help, researchers say.

The worldwide ban on ozone-depleting chemicals stopped Arctic ozone from disappearing and forming an "ozone hole" similar in size to Antarctica's.

The risk of 'severe, pervasive and irreversible impacts' is quickly rising worldwide, the draft report warns.

Scientists with NASA unveiled the first carbon maps obtained by the spacecraft, named the Orbiting Carbon Observatory-2, or OCO-2.

Even though Earth is already in an ice age, a surplus of ice is the least of our worries.

Climate change may be stripping nutrients from the most basic of foods, and that's making its way up the chain to us.

The latest World Meteorological Organization Greenhouse Gas Bulletin paints a grim picture for our environment.

Newly declassified photos show a shocking loss of ice in the Arctic as global temperatures continue to rise.

Four years in the making, the Discovery Channel/BBC co-production is a groundbreaking look at the Earth's polar regions.

Long-term thinning of Arctic sea ice combined with an intense, windy storm over the Arctic in early August contributed to a new record low for sea-ice extent, s

In continued efforts to track changes in glacial and sea ice, NASA's IceBridge plane has begun collecting data in Greenland.

A new visualization from NASA offers a unique view of life on Earth.

Cadbury will certify 300 million of its Cadbury Dairy Milk chocolate bars as well as its packaged cocoa, at a cost of £1.5m ($2.1m), by the end of summer.

The narrowest building in Poland is the work of Israeli writer Edgar Keret.

We've found several camping areas on lakes, rivers and the ocean that offer beautiful views and plenty of recreational opportunities.

Could we be witnessing Korean pop's plunge into the cultural criticism arena?

It's time to cultivate a true appreciation for what we have.

Organize your home and office with help from Gail Blanke's book about clearing the clutter.

These athletes got to the top of their sports without meat.

Anas Cheema, a 22-year-old economics student at the University of Victoria, decided to dedicate his summer.

Research conducted in Madison, Wisconsin, finds soil in developed residential landscapes is better at absorbing CO2 than forests.

The whole point of getting out into the natural world is to see, smell and hear the sounds of nature.

We need to give coal miners safe, productive, high paying jobs building the green future. Their jobs should not stand in the way of killing coal.

500 square miles of Appalachian forest is gone forever due to illegal mountaintop mining, and the EPA doesn't seem to mind.

A new YouTube integrated map lets Appalachian communities speak out on mountaintop coal mining.

Rainforest Action Network decides enough is enough with Obama's broken promises on mountaintop mining and stages dramatic protest in front of the EPA.

Do they really blast the tops off of mountains to get at cheaper coal? Do they really kill whales and dolphins and call it "research". Sarah Palin on the Discov

New EPA ruling on infilling valleys may limit future mountaintop mining permits, but it's only the first step in a long process to stop the 'Appalachian Apocaly

A state legislator has an interesting and potentially viable way to avoid dealing with the EPA.

Even if you're not tapped into the daily vibe of environmental news and issues, you've not doubt probably heard of or seen the devastation caused by mountaintop

The Washington, D.C., river epitomizes the ecological dangers that plague many U.S waterways, according to a national environmental group.

After months of careful consideration, actress says her 'responsibilities and energy' need to be focused on family.

A young parkgoer returned a rock she took from Smoky Mountains National Park along with a drawing and a nice letter.

Communications Wireless Group works with business owners to recycle, refurbish, and reuse old wireless devices while maintaining a zero-landfill policy.

Sprint customers can get instant credit on their phone bills by recycling old phones at local stores.

Phone recycling has become so easy, convenient and, in some instances, profitable, there’s really no reason not to do it.

Customers will be able to learn more about the environmental impact of their mobile devices.

AT&T customers recycled 50,942 devices in a single week, setting a new Guinness World Record.