There are different kinds of policies that can curb greenhouse gases.
Explaining how carbon taxes and cap-and-trade systems work is simpler than figuring out how high those taxes and caps should be.
The Endangered Species Act was enacted in 1973 partly to help save the bald eagle, the U.S. national symbol, from extinction. Should public appeal influence which species get priority?
How should the US spend limited funds for conserving endangered species? A new data tool lets managers compare different strategies so they can allocate money to protect the most species.
Devastation from Hurricane Michael in Mexico Beach, Florida, Oct. 12, 2018. Residents whose homes have suffered major damage in multiple storms could eventually be offered buyouts, but the process can take several years.
AP Photo/Gerald Herbert
Government agencies spend millions of dollars yearly to buy and demolish homes sited in floodplains. But the program is slow, cumbersome and doesn't always help those who need it most.
Volunteers prepare to take flow measurements on Muddy Creek.
Centre County Pennsylvania Senior Environmental Corps
When people form local networks to take care of resources such as drinking water, they strengthen their communities. Technology can support these efforts and promote learning and innovation.
There’s a bridge over this Michigan waterway and a precarious pipeline beneath it.
AP Photo/Al Goldis
A big spill in Michigan's Straits of Mackinac could have devastating consequences. But does replacing the pipeline running beneath it make sense in a warming world?
The biggest U.S. oil company wants to pay every American a dividend.
AP Photo/Richard Drew
Exxon Mobil has a clear motive to back a new plan to tax carbon with its clout and money. And a carbon tax that is high enough to work might prove politically impossible to enact.
Releasing a female wolf on Isle Royale, Oct. 2, 2018.
The National Park Service is moving wolves to Isle Royale in Lake Superior to replenish a small pack on the island. Wolves prey on moose, which are overgrazing the island. It doesn't hurt that they are charismatic.
Would these power lines have weathered the storm if they were underground?
Hurricanes Michael and Florence have knocked power out for millions of people. Burying power lines could help but the costs are high.
Protecting coastal wetlands, like this slough in Florida’s Everglades National Park, is a cost-effective way to reduce flooding and storm damage.
Coastal development is destroying marshes, mangroves and other wetlands that provide valuable protection from hurricanes and storms. Research shows these benefits can be worth millions of dollars.
Climate change denial, underwater.
The results of a study that measured public responses to a policy aimed at reducing carbon emissions contradict a common environmental concern.
A street sign sticks up from floodwaters after Hurricane Florence in Nichols, South Carolina, September 21, 2018.
AP Photo/Gerald Herbert
Hurricanes frequently move inland in the southeast US, causing widespread river flooding, but emergency plans focus on protecting people in coastal communities.
William Nordhaus argues markets can help curb climate change.
AP Photo/Craig Ruttle
William Nordhaus showed that the market offers the best chance for preventing global catastrophe form climate change.
Without rapid and dramatic changes, the world will face a higher risk of extreme weather and other effects of climate change.
AP Photo/Mike Groll
The UN's panel on climate change said that technologies to remove CO2 will be necessary to limit global temperature rise to only 1.5 degrees Celsius. But these techniques are largely unproven.
Swordfish only – no bycatch, please.
Joe Fish Flynn/shutterstock
A new tool called EcoCast helps fishermen in the West Coast figure out where it's best to fish that day.
Cooling dairy cows with fans and misters at Pacheco Dairy in Kerman, Calif., during a heat wave in 2006.
AP Photo/Gary Kazanjian
Dairy cows are sensitive to heat, so farmers cool them down with sprinklers and fans. Researchers are designing better, more efficient systems to keep cows comfortable through hot California summers.
A half-century of regulation has greatly increased the fuel efficiency of US-made cars.
Do high fuel economy requirements make the US auto fleet less safe? The Trump administration says yes and is moving to freeze these standards, but auto experts and US car makers disagree.
Warning sign at a Cape Cod beach.
The return of white sharks to Cape Cod, Massachusetts was a tourism success story – until a shark killed a swimmer. Can the Cape's residents and visitors learn to share the ocean with these apex predators?
The scientific drilling ship JOIDES Resolution arrives in Honolulu after successful sea trials and testing of scientific and drilling equipment.
The ocean floor holds unique information about Earth's history. Scientific ocean drilling, which started 50 years ago, has yielded insights into climate change, geohazards and the key conditions for life.
In Colorado, fracking often occurs right next to where people live.
Tara O'Conner Shelley
Landowners told researchers that they lacked the knowledge, time and money to advocate for themselves, their financial interests and their property in negotiations over drilling leases.
Trees have died in Rocky Mountain National Park, Colo., as climate change has intensified bark beetle infestations and drought.
As climate change alters temperature and precipitation patterns across the US, it is having especially severe impacts on national parks. These changes could happen faster than many plants and animals can adapt.
Fossa (Cryptoprocta ferox) at the Houston Zoo.
The fossa, Madagascar's largest predator, is a cat-like carnivore that eats everything from insects to lemurs. Because they are rare and elusive, scientists know very little about them, including how many there are.
Environmental regulations generally improve communities’ preparedness and resilience during disasters.
AP Photo/Gerald Herbert
The damage to coal ash sites from Hurricane Florence demonstrates how a community's vulnerability to natural disasters is closely linked to how stringent environmental regulations are.
A sunny day evacuation days before Hurricane Florence made landfall in North Carolina.
AP Photo/Tom Copeland
A hurricane evacuation researcher in South Carolina explains why evacuating when the sun's out actually makes sense.
Flooding in Kinston, North Carolina during Tropical Storm Florence, September 14, 2018.
NC National Guard
Widespread flooding in North Carolina from Hurricane Florence shows the need for better advance planning in inland areas of the south and mid-Atlantic, especially near rivers.
Cumberland Island National Seashore off the coast of Georgia.
How do the narrow ribbons of sand that line the Atlantic and Gulf coasts withstand the force of hurricanes? The answer lies in their shape-shifting abilities.