More tornadoes occur in the United States than in any other country, mainly in the Great Plains, the Midwest and southern states. Two meteorology professors explain what causes these dangerous storms.
President Trump's budget reportedly will slash funding for clean energy research and development. An energy expert explains the importance of government support and spotlights some key opportunities.
A new study shows that the way humpback whales choose their habitats is affected by humans.
New research shows that importing goods from low-wage countries has helped US manufacturers shift production to less-polluting industries, produce less waste and spend less on pollution control.
The White House is deciding whether or not to stay in the Paris climate agreement. But a large majority of Americans – including Trump voters – want the U.S. to participate and lead.
Congress is considering proposals to amend the Endangered Species Act. In this roundup we offer views on what's lost when species disappear and the complexities of bringing them back from the brink.
Cholera kills thousands every year but is treatable if it is caught early. Understanding how El Niño shifts cholera risks in Africa can help countries prepare for outbreaks and save lives.
A new report calls U.S. forests an undervalued asset for slowing climate change. It warns that they are being degraded by logging for wood, paper and fuel, particularly in the Southeast.
'Doom and gloom' messages about nature are less effective than positive ones. The Lost & Found project tells the stories of creatures thought long gone but eventually rediscovered.
Large livestock farms, known as CAFOs, have polluted air and water in many communities. A recent court decision will force CAFOs to report their air emissions from manure and other sources.
Oklahoma is trying to limit the number of earthquakes caused by oil and gas extraction, but some existing faults there – which could be activated by wastewater injection – have never been mapped.
Messaging for the April 29 People's Climate March is stressing collective resistance against President Trump. This theme may appeal to activists, but is unlikely to grow the movement.
Pulp and paper production is a major industry with a large environmental footprint. Recently, though, paper companies have worked to reduce pollution and promote sustainable forestry and recycling.
The industry has wanted access to offshore oil for decades, but the Arctic remains challenging. Consumers, meanwhile, seem conflicted on expanded offshore drilling.
Sea otters had been absent from this Alaskan national park for at least 250 years. By marrying math and statistics, scientists map this animal's successful comeback.
It's all in the presentation: In studies, consumers were more apt to choose fuel-efficient vehicles depending on how the same pieces of information were displayed on labels.
Bio-prospecting is the search for useful materials from natural sources. A biologist explains what we can learn from bacteria about breaking down plant material, and how we can use that knowledge.
Ingredients from shampoo, sunscreens and other personal care products are turning up in water supplies. Some are toxic or cause hormonal damage to aquatic life, and could threaten human health.
How could green groups attract more diverse volunteers? Maybe they could put more time and energy into outreach toward the people most affected by environmental injustices.
Oil production used to fall when prices were low. But a new drilling boom in Alaska, driven by technical advances and global partnerships, spotlights America's rise as a world oil power.
Forests are valuable for many uses, including timber, clean water, wildlife habitat and recreation. Stresses on U.S. forests include wildfires, pest invasions and development of private lands.
The U.S. nuclear industry is struggling to compete with cheap natural gas and manage radioactive waste. Budget cuts and anti-regulatory pressure could worsen things by weakening federal oversight.
To help feed a growing world population, restore biodiversity and slow climate change, a geologist calls for a moon shot effort to restore healthy soil around the world.
Standard methods for removing chemicals from groundwater can be slow and expensive. Now scientists are using electricity to break down long-lived, toxic chemicals called PFASs faster and at less cost.
Why use satellites to study Earth's climate? Researchers leading a new mission explain how images from space will help them analyze which parts of the Americas soak up the most carbon.
Many human-wildlife conflicts are rooted in struggles over land. Some countries, notably Mexico, have found ways to protect both nature and the rights of indigenous people and forest dwellers.
People worry Washington is losing respect for science and even the centuries-old scientific method. Two climate scientists explain how science can be done when talking about the future.
Whether or not farmers believe human activities are changing the climate (many don't), an agriculture specialist urges them to pursue payments for techniques that return carbon to the soil.
Before World War I, petroleum had few practical uses, but it emerged from the war as a strategic global asset necessary for national stability and security.
Former Colorado Gov. Bill Ritter, now leading a clean energy research center at Colorado State University, explains why clean energy will keep growing despite President Trump's focus on fossil fuel.
President Trump says environmental regulation kills jobs. To fight back, conservation advocates need to show that protecting the environment can produce jobs and local benefits.
President Trump's latest executive order weakens or reverses multiple rules and policies designed to slow climate change. Scholars explain the order's impact.
No energy source is perfect, but solar and wind have a much lower health and environmental footprint than fossil fuels, a study finds. Biopower, though, is a mixed bag.
Trump has pledged to invest big in infrastructure. An analysis shows the electric grid will need hundreds of billions of dollars over the next decade just to keep things as they are.
Developed and developing countries alike struggle with water quality problems. For World Water Day, a look at the challenges – and some potential solutions – to better treating wastewater.