What to know about ticks and Lyme season following a mild winter

Researchers say it is hard to predict how the tick season will play out. This year’s mild winter and early snow melt, though, could mean more ticks earlier than usual.

Volunteers clean up the Anacostia Watershed on Earth Day

The Anacostia River, which flows from Maryland into D.C., has long been a poster child for polluted urban waterways. But years of investment in cleanup appear to be paying off.

Where does your state rank on the ‘2023 Greenest States’ list?

The list compared the 50 states across three dimensions: environmental quality, eco-friendly behaviors and climate change contributions.

Interesting facts about Earth Day: Who created the holiday?

The founder of Earth Day was Senator Gaylord Nelson, who was inspired to create the global observance after one of the worst ecological disasters in U.S. history.

Landmark law saved whales through marine industry changes, scientists say

The drive to protect vanishing whales has brought impacts to marine industries and those changes are accelerating as the Endangered Species Act approaches its 50th anniversary.

Scientists find ‘mountains,’ variable structures near Earth’s core

Samantha Hansen, a lead researcher, said the team was surprised by how “abundant” the structures were, finding evidence all over the southern hemisphere.

Here's what really happens to your used clothing donations

Overall, only about 15% of used clothes and other textile waste is recycled in the U.S., according to EPA data. Here’s how to make sure your old clothes have the best impact.

Here's why there could be pink snow at Yellowstone this summer

Visitors can see a variety of colorful snow patches, including pink, green, orange, and brown at different areas of Yellowstone Park this summer.

Hawaii considers tourist fees to help protect its natural environment

“All I want to do, honestly, is to make travelers accountable and have the capacity to help pay for the impact that they have," one Hawaii lawmaker said.

Gas prices could hit $4 a gallon after OPEC production cut

As of Monday, regular gasoline averaged roughly $3.50, according to AAA. If Flynn's prediction holds, it could mean gasoline prices will climb above $4 per gallon as summer nears.

Saudis, others cutting oil production could spike prices worldwide

Higher oil prices would help fill Russian President Vladimir Putin's coffers as his country wages war on Ukraine and force Americans and others to pay even more at the pump amid worlwide inflation.

Prehistoric sabertooth skull found in Iowa likely last of species to walk Earth, researchers say

Radiocarbon dating indicates the male sabertooth cat died at the end of the Ice Age between 13,605 and 13,460 years ago before getting buried in the East Nishnabotna River in southwest Iowa.

Plants can make noises when under stress, study says

Researchers said when plants were dehydrated or cut, the sounds emitted were louder than when they were left alone.

US lawsuit seeks to protect endangered coral reef species

An environmental organization is suing the U.S. government and accusing it of failing to protect 12 endangered coral species across the Caribbean and the Pacific Ocean that have been decimated by warming waters, pollution and overfishing.