Climate change

The drive to save elm trees is part of a broader fight in the U.S. to try to beat back forest pests and diseases, which threaten longstanding industries such as logging and damage some of the nation’s most fragile ecosystems.

Under the Bureau of Reclamation’s plan, California, Nevada and Arizona will collectively reduce water use.

It’s becoming more likely that the U.S. could see a very strong El Niño this year, the National Oceanic and Atmospheric Administration said this week.

Foundations funded by Leonardo DiCaprio and Jeff Bezos have launched a $200 million initiative to revive 100 of Earth’s most threatened species.

Separating hype from reality when it comes to El Nino. Belen De Leon reports for the NBC4 News at 4 p.m. on Friday July 9, 2026.

Norway midfielder Morten Thorsby changed his jersey number from 18 to 2 to highlight the Paris Agreement’s goal of limiting global warming to below 2 degrees Celsius. The outspoken climate activist is using the FIFA World Cup to raise awareness on and off the pitch.

Temperatures on the ocean surface hit a record high in June, European scientists warned Wednesday, fueling fears of more dangerous heat waves this summer.

A new report from the United Nations weather agency gives a three-out-of-four chance that the next five years will average more than 1.5 degrees Celsius above pre-industrial temperatures. That’s the international safety limit set in 2015. There’s an even higher chance — 86% — that one of the next five years will smash the global heat record set in 2024...

Dead, emaciated gray whales have been washing up on Washington state shores at a shocking pace over the last few months.

A “super” El Niño is an exceptionally strong storm season that can cause severe flooding, droughts and record temperatures. Here’s what you need to know.

Billionaire Tom Steyer is former hedge fund executive turned philanthropist, environmental activist and politician. Here’s what you need to know.

When is Earth Day? Here is everything to know about the annual event, from its history to the theme for 2026.

As droughts worsen and freshwater grows scarce, desalination is expanding rapidly. More than 20,000 plants now convert seawater to drinking water worldwide.

Scientists say a record-smashing March heat wave in the U.S. Southwest showed climate change is already driving more dangerous weather extremes.

A new study in the journal Nature says most sea level rise research may have underestimated coastal water heights by an average of 1 foot.

The Environmental Protection Agency on Friday weakened limits on mercury and other toxic emissions from coal-fired power plants.

Hosting the Olympics is notorious for being a drain on economic and environmental resources. Organizers for the 2026 Milan Cortina Games are taking a different approach.

Fungi have long fascinated scientists and aficionados. They are sought-after for food, medicine, building materials, psychedelic journeys and more.

Cartoon mascots Tina and Milo have been fan favorites at the Milan Cortina Games. Their real-life counterparts may be even cuter, but their numbers are dwindling thanks to climate change.

The Environmental Protection Agency announced Thursday that it will rescind the Obama-era legal finding which allowed the department to limit greenhouse gas emissions.