A new report from the American Lung Association finds that nearly 148 million Americans breathe unhealthy air.

A new study by WHO finds that air pollution has worsened since 2011, signaling increased health risks for city dwellers.

This high tech billboard can do the work of 1,200 trees, scrubbing the air of pollutants.

Dozens of cities throughout the country have either banned or limited fireworks displays due to the threat of heavy pollution.

Since its release last Saturday, the film on China's crippling pollution has been viewed over 100 million times.

Prime Minister Modi's efforts aimed at tackling local air pollution, but the whole world stands to benefit.

Air pollutants are linked with heart disease, lung disease and other serious afflictions that have long-term impacts.

A new study says commuting to work by car may be far more harmful to your health than previously believed.

China's most polluted cities have made strides in reducing air pollution, but there's still work to be done.

By analyzing ear wax from a deceased blue whale, scientists gained clues to years of chemical exposure.

Life across the globe depends on bees, butterflies, birds, bats and other pollinators. Test your knowledge about these vital creatures.

Although new on the Indian retail scene, Ikea already has big plans to alleviate one of the country's largest environmental ills.

These plastic filters far surpass plastic straws in coastal cleanup tallies and they're toxic on land, too.

wo new studies on how Americans perceive climate change is a testament to public confusion and an urgent call for better messaging from the scientific communit

Two new studies on how Americans perceive climate change is a testament to public confusion and an urgent call for better messaging from the scientific communit

U.S. EPA administrator Lisa P. Jackson sits down with Jon Stewart to discuss the Republican attacks against her agency.

Mercury pollution and climate change are both unintended consequences of burning fossil fuels for centuries.

VOC emissions from shampoo, cleaners and paint impact air quality as much as vehicle emissions, according to a new study from NOAA.

Conservation photographer Krista Schlyer is documenting the people, wildlife and landscapes of America's 'forgotten' river.

The percentage of Americans who believe the climate is changing has grown, and 64% of Americans favor regulations to reduce greenhouse gas emissions.

Nearly half of all air pollutants exceed breathable levels and they often have a dangerous impact on our health.

Being stopped at red lights is more than just annoying; it also can be incredibly unhealthy.

A California agency's attempt to regulate train pollution is ruled out-of-bounds.

As the GOP frontrunner tries to hold on to support in New Hampshire, he continues to walk a fine line when it comes to what he really believes about environment

Scientists says pollution on a planet may help aliens spot an advanced civilization.

EcoSnoop starts a new class of vigilante green apps for the iPhone. Now you can report neighborhood polluters.

You may not know it, but light pollution contributes to carbon emissions and interferes with animal migration. Take these simple steps to reduce it.

Light pollution steals from us the view of the universe in which we live. Check out this beautiful photograph taken high in the Sierra Nevada of an unblemished

The Bortle Light Pollution Scale is a good model for understanding how tainted our night skies are by light pollution.

Do you even know what the night sky looks like sans human interference?

Photographer's exploration of the beauty of man-made illumination around the world reflects humankind's dominance over the planet.

Bright skies at night make some trees bud early for spring.

Birds that produce 'flight calls' during night migration may be more vulnerable to light pollution, a new study finds.

Star Count 2019 engages stargazers in England and draws attention to the growing threat of light pollution.

In this video, the author and real-food advocate talks about why the farm bill should matter to anyone who cares about food.

50 years after man first walked on the moon, the ripples of that accomplishment continue to inspire innovation.

Ten eco-activists are wanted for a 20-day eco-adventure, sailing from Hawaii to Vancouver while studying plastic pollution in the oceans.

The Indian Ocean is the world's biggest plastic dumping ground, but some of it is leaking elsewhere.

Video: Assignment Earth explains why residents and government authorities are determined to clean up and revive the Gowanus Canal.

Using images from its Lunar Reconnaissance Orbiter spacecraft, NASA reveals the moon's 'dark side' in 4K as observed by the Apollo 13 astronauts.

Video: Alexandra Cousteau revisits the TVA Kingston Coal Ash Spill, which was six times larger than the Gulf oil spill.

Alexandra Cousteau revisits Scott St. Pierre in Louisiana and learns how he and others are coping with the oil spill.

Each year, as many as 20 million people get sick from drinking contaminated water in the U.S.

Human noise is changing how some birds sing, while causing chronic stress and reproductive problems in others.

New report says toxic chemicals are causing Americans 'grievous harm' that could be prevented by better government oversight.

We all know there's too much plastic making its way into the environment; here's an innovative solution to a seemingly intractable problem.

Smog in northern India is so bad, it's the equivalent of smoking 2 packs of cigarettes a day.

Air pollution is so pervasive it even affects babies in the womb and causes long-term mental and physical health problems.

Brizi is a cushioned air filter and fan designed to clean the air around your baby's face and protect them from air pollution.

Researchers studying the declines say more lives may end up being saved from air quality improvements than are lost to the virus itself.