This past week, the EPA said it is reconsidering the scientific finding that greenhouse gases are a danger to public health. This comes as research shows average global temperatures in 2024 likely rose above a 1.5 degree Celsius threshold that for years has been a red line for climate change. Ali Rogin speaks with Michael Mann at the University of Pennsylvania to learn more. PBS News is supported by - https://www.pbs.org/newshour/about/funders

This past week, beavers were legally released into the English countryside for the first time since they were hunted into extinction there in the 17th century. Conservationists hailed it as a watershed moment for this keystone species, which helps combat flooding and drought by engineering the landscape with dams and channels. Alex Thomson of Independent Television News reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Sea turtles are considered one of the oldest living species on Earth, but it’s been a mystery where their babies go after heading out to sea. Known as their “lost years,” the lack of information makes it hard for conservationists to protect these turtles. Now, a team of marine scientists is working to change that. John Yang reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders

The Academy Museum of Motion Pictures in Los Angeles is featuring two exhibitions that explore the relationship between movies and technology as part of PST ART: Art & Science Collide. PBS Student Reporting Labs Ebonie Shelley has the story for our arts and culture series, CANVAS. PBS News is supported by - https://www.pbs.org/newshour/about/funders

NASA’s partnership with the private sector took a key step forward with a successful moon landing. The Blue Ghost lunar lander, built by the company, Firefly Aerospace, stuck the landing safely early Sunday, making it the first commercial spacecraft to do so. It's carrying a number of experiments for NASA as part of a larger effort to have private companies make deliveries. Miles O'Brien reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders

At this year’s Oscars, there is a subplot of controversy over the use of artificial intelligence in the production of a number of nominated films, including some in the running for best picture. Katey Rich, awards editor at The Ankler and host of the podcast Prestige Junkie, joins John Yang to discuss. PBS News is supported by - https://www.pbs.org/newshour/about/funders

For NASA astronauts Suni Williams and Butch Wilmore, the long wait to return to Earth is almost over. They went to the International Space Station last June in a Boeing Starliner spacecraft. They were supposed to return a week later, but because of problems with the Starliner, they’ve stayed at the station for over 250 days. Amna Nawaz discussed more with Williams, Wilmore and crewmate Nick Hague. PBS News is supported by - https://www.pbs.org/newshour/about/funders

The origins of life on our planet remains one of science’s great mysteries. Now, a NASA mission that brought a piece of an ancient asteroid back to Earth has revealed that the building blocks of life may have been scattered throughout the solar system billions of years ago. Ali Rogin reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Beavers and the dams they build are not always embraced in the areas where they do their work. But there's a growing recognition that they also are building a kind of natural infrastructure that helps with water management and the climate. Science correspondent Miles O'Brien went to see the beavers at work during their busy season and has the story for our ongoing coverage of Tipping Points. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Trump and Republican candidates made rolling back federal protections for transgender people a big issue, spending hundreds of millions of dollars on TV ads, much of it focused on gender-affirming care for minors. Despite the attention, a new study finds that gender-affirming medications are very rarely prescribed to adolescents. John Yang speaks with KFF’s Lindsey Dawson to learn more. PBS News is supported by - https://www.pbs.org/newshour/about/funders