Transition into El Nino could lead to record heat around globe

Fishermen first used the term El Niño off the coast of South America to describe the unusually warm water temperatures before Christmas.

Green comet sighting: Here's when to see this celestial view unlikely to return for millions of years

This celestial sighting is a bit like space-speed dating. Astronomers only just learned of Comet C/2022 E3's existence, and it will be gone before we know it. Learn how it was discovered and why a naked-eye comet is rare.

Minnesota Boundary Waters: US moves to protect area from planned mine

The Biden administration moved Thursday to protect northeastern Minnesota’s pristine Boundary Waters Canoe Area Wilderness from future mining, dealing a potentially fatal blow to a copper-nickel project.

Minnesota legislators consider action on PFAS in drinking water

The eastern Twin Cities metro is notorious for its problems with PFAS chemicals after manufacturer 3M dumped waste containing the so-called “forever chemicals” in the area and contaminated the drinking water of thousands of Minnesotans.

Feds deny emergency request for ship-speed restrictions to protect whales

The National Oceanic and Atmospheric Administration is considering new rules designed to stop large ships from colliding with North Atlantic right whales.

Greenland is the warmest it's been in more than 1000 years, ice core data shows

Scientists say warming in Greenland in the past may have been masked by local weather variability. But not any more. Climate change is blowing that away.

2022 among warmest years on record; experts warn warmer temps to come

Government science teams say that 2022 didn't quite set a record for heat, but it was in the top five or six warmest on record depending on who's doing the measuring.

Ozone hole should fully mend by 2066, UN says

A United Nations scientific report says Earth's protective ozone layer is slowly but noticeably healing.

EPA investigating Colorado air pollution regulations for discrimination

The EPA is probing Colorado’s oversight of the state’s biggest polluters and whether the effect of that pollution on Hispanic residents and other racial minorities is discriminatory.

Lawsuit over Minneapolis 2040 plan gets moved back to district court

A lawsuit challenging a comprehensive plan for the future of Minneapolis over environmental impacts is getting kicked back to district court after a Court of Appeals ruling released on Tuesday.

Climate in 2022: Extreme heat, drought, floods fueled by warming planet

By October, the U.S. had experienced 15 major weather disasters with losses exceeding $1 billion in damage each, according to NOAA.

Christmas tree pickup, recycling tips for after the holidays

Recycling options vary among communities but here are some general tips on how to get rid of your real tree.

Your holiday dinner may contain thousands of microplastic particles, researchers say

Researchers in the U.K. are warning about how microplastics can infiltrate our food, conducting an experiment that found about 230,000 microplastic particles in a traditional roast chicken dinner with sides.