The protesters have scored a big victory in the Dakota Access Pipeline conflict, but it's served only to illuminate the sharp divisions over energy policy in the US.
A retired rear admiral warns President-elect Trump against cutting NASA's Earth observations, which provide essential data for weather forecasters, businesses, scientists and the armed forces.
Plant-eating fish control the spread of seaweed and algae on coral reefs. New research explaining why populations of these fish vary from site to site could lead to better reef protection strategies.
Citizens and activists are using cheap off-the-shelf sensors to collect their own data on air pollution. It's a promising trend, but these devices have serious technical limitations.
Many thousands, perhaps millions, of lives depend on the direction of Trump's climate policies.
Recent global climate talks at COP22 saw a growing role for businesses, NGOs and the state of California – a promising sign for action on climate change in the face of U.S. inaction.
REI's 'Opt Outside' campaign makes a virtue of shunning Black Friday and hiking instead of shopping. But while outdoor retailers preach sustainability, they still fuel our consuming habits.
The 'war on coal' is not really a result of onerous regulations but a combination of market forces over which a Trump administration has limited control.
For three years, carbon emissions from fossil fuels have grown little or not at all, opening a window of opportunity to halt climate change.
The final weeks of 2016 would need to be the coldest of the 21st century to avoid it becoming the hottest year.
Study shows the footprint of climate change is already vast and that species are trying to adapt to rising temperatures.
Some areas expecting big environmental changes already have large, vulnerable populations.
Thousands of seabirds die every year from consuming plastic trash in the oceans. But why do they eat plastic? New research shows that it produces odors that help some species find prey.
Negotiators face a daunting task at the COP22 climate talks in Marrakesh: Build on the momentum of Paris and resolve difficult questions over money for poor countries.
Experts agree that a new era for climate policy here. But the hard work starts now.
Daylight saving time advocates say it conserves energy and wins wars. But studies show that injuries and illnesses rise when we switch the clocks. One solution: staying on DST year-round.
As the vaquita porpoise heads towards extinction, new management measures in Mexico still may have missed the point -- affecting not one but two critically endangered marine species.
Warming waters due to climate change are losing oxygen, threatening the health of fish and ecosystems.
China has the world's second-largest economy, powered by cheap labor and cheap fossil fuel. But now Chinese urbanites want greener, healthier lifestyles. Can the government deliver them?
There are ticking time bombs, high up in the mountains.
What happened to the massive underwater 'oil plume'?
Why do some people evacuate ahead of disasters while others stay put? The rising death toll from Hurricane Matthew shows that often the poor and vulnerable are least able to move.
Conservative commentators accused government officials last week of hyping risks from Hurricane Matthew. A meteorologist explains why this is impossible in the internet era.
Debates over federal lands, from the Malheur Refuge takeover to fossil fuel leases on public land, are back in the news. How do the two parties line up on public land policy?
Do environmental regulations help or hurt the economy? Democrats and Republicans sharply disagree. Six of our experts consider whether we have too much or too little regulation.
An anthropologist argues for new ways to value sacred landscapes.
Politicians are still debating whether climate change is real, but military planners call it a serious threat. A retired rear admiral explains how climate change affects U.S. national security.
As the U.S. braces for potential landfall of Hurricane Matthew, our experts weigh in on hurricanes, the need for resilient infrastructure and climate change.
The new movie 'Deepwater Horizon' depicts the blowout that triggered the 2010 BP oil spill in the Gulf of Mexico. A professor of petroleum engineering assesses what the film gets right and wrong.
A new study challenges the longstanding view that biofuels are carbon-neutral, and asserts that in the U.S. to date, they have done more harm to the climate than gasoline.
Yes, humans hold awesome power over the rest of the planet, but nature will always fight our attempts to 'tame' the natural world.
Our institutions are not solving the world's wicked problems, such as the refugee crisis and climate change. Can sustainable coffee – a bottoms-up, modular approach – provide clues to a better way?