Eighty percent of all global trade travels by sea, and the ships carrying those goods account for 3 percent of global greenhouse gas emissions. Now, some shipping companies are taking a new tack as they try to navigate the industry to sustainability on the high seas. John Yang reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Ever since the deadly wildfires began in Los Angeles two weeks ago, residents have largely turned to one app for the most up-to-date information. It’s called Watch Duty and Stephanie Sy spoke to two members of the small team that makes it possible. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Scientists say they have tapped into an extraordinary archive of the Earth’s climate in the ice deep beneath Antarctica. They hope it will help them understand both how the climate changed in the past, how it’s changing now and how it may change in the future. John Yang reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Scientists have found the beginnings of a young universe that may offer insights into the beginnings of our own Milky Way Galaxy. Geoff Bennett and Miles O'Brien discussed why scientists are excited by the discovery, one that has a little holiday sparkle of its own, so to speak. PBS News is supported by - https://www.pbs.org/newshour/about/funders

With the growth of offshore wind farms there are many questions surrounding their impact. In the second of two stories about what researchers are finding, science correspondent Miles O'Brien takes us to New Bedford, Massachusetts, where local officials are trying to strike a balance between greener, renewable energy and a potential impact on the critical fishing industry in that region.

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The Biden administration just approved a wind farm project off the coast of Massachusetts. It's the eleventh commercial-scale wind project of its kind to get approval and comes at a key moment for the sector, as President-elect Trump, a frequent critic, prepares to take office. Miles O'Brien reports.

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A type of white-tailed deer unique to the Florida Keys has been on the endangered species list for nearly 60 years. Only about 800 Key deer remain, and their habitat is under growing threat from rising sea levels. William Brangham reports for our series, “Saving Species.” PBS News is supported by - https://www.pbs.org/newshour/about/funders

A pair of NASA astronauts who have been stuck at the International Space Station since June will have to wait a little longer to come back to Earth. NASA says astronauts Butch Wilmore and Suni Williams won’t return now until late March or even April, which means they will have lived and worked in orbit for more than nine months. Science correspondent Miles O’Brien reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders

Yuma County, Arizona, is known as the "Winter Salad Bowl Capital." From lettuce to cilantro to broccoli, the region produces almost all the leafy green vegetables consumed in the U.S. during winter months. Farmers there rely on the nearby Colorado River and as the West contends with drought and a changing climate, they've had to adapt. Stephanie Sy reports. PBS News is supported by - https://www.pbs.org/newshour/about/funders

In another sign of the climate crisis, 2024 is on track to be the hottest year ever on record. Last year, the Biden administration established the American Climate Corps to train people for green jobs and empower Americans to help combat climate change. With thousands of Climate Corps members dispatched across the country, we hear from some of them about their experiences. PBS News is supported by - https://www.pbs.org/newshour/about/funders