Climate change

Emperor penguins thrive on Antarctica’s coastlines in icy conditions any human would find extreme. Yet, like Goldilocks, they have a narrow comfort zone: If there’s too much sea ice, trips to bring food from the ocean become long and arduous, and their chicks may starve. With too little sea ice, the chicks are at risk of drowning. Climate change is now putting that delicate balance and potentially the entire species at risk. In a recent study, my colleagues and I showed that if current global warming trends and government policies continue, Antarctica’s sea ice will decline at a rate that would dramatically reduce emperor penguin numbers to the point that almost all colonies would become quasi-extinct by 2100, with little chance of recovering. That’s why the U.S. Fish and Wildlife Service finalized a rule on Oct. 26, 2022, listing the emperor penguin as “threatened” under the Endangered Species Act, effective Nov. 25, 2022. The director of th...

The extreme weather that has battered much of the U.S. in 2022 doesn’t just affect humans. Heat waves, wildfires, droughts and storms also threaten many wild species – including some that already face other stresses. I’ve been researching bee health for over 10 years, with a focus on honey bees. In 2021, I began hearing for the first time from beekeepers about how extreme drought and rainfall were affecting bee colony health. Drought conditions in the western U.S. in 2021 dried up bee forage – the floral nectar and pollen that bees need to produce honey and stay healthy. And extreme rain in the Northeast limited the hours that bees could fly for forage. In both cases, managed colonies – hives that humans keep for honey production or commercial pollination – were starving. Beekeepers had to feed their bees more supplements of sugar water and pollen than they usually would to keep their colonies alive. Some beekeepers who had been in busines...

Hurricane Ian hit Florida in September 2022 as one of the United States’ most powerful hurricanes on record, and it followed a two-week string of massive, devastating storms around the world. A few days earlier in the Philippines, Typhoon Noru gave new meaning to rapid intensification when it blew up from a tropical storm with 50 mph winds to a Category 5 monster with 155 mph winds the next day. Hurricane Fiona flooded Puerto Rico, then became Canada’s most intense storm on record. Typhoon Merbok gained strength over a warm Pacific Ocean and tore up over 1,000 miles of the Alaska coast. Major storms hit from the Philippines in the western Pacific to the Canary Islands in the eastern Atlantic, to Japan and Florida in the middle latitudes and western Alaska and the Canadian Maritimes in the high latitudes. A lot of people are asking about the role rising global temperatures play in storms like these. It’s not always a simple answer....

Wetlands are areas of land that are covered by water, or have flooded or waterlogged soils. They can have water on them either permanently or for just part of the year. Whether it’s year-round or seasonal, this period of water saturation produces hydric soils, which contain little or no oxygen. But this doesn’t mean that they are lifeless: Wetlands are full of unique water-loving plants and wildlife that have adapted to wet environments. Wetlands can take many different forms, depending on the local climate, water conditions and land forms and features. For example, swamps are dominated by woody trees or shrubs. Marshes often have more grasslike plants, such as cattails and bulrushes. Bogs and fens are areas that accumulate peat – deposits of dead and partly decomposed plant materials that form organic-rich soil. Trillions of dollars in ecological benefits Wetlands are important environments for many reasons. They provide ecological services whose value has...

Leer en español ou em português The Ashéninka woman with the painted face radiated a calm, patient confidence as she stood on the sandy banks of the Amonia River and faced the loggers threatening her Amazonian community. The loggers had bulldozed a trail over the mahogany and cedar saplings she had planted, and blocked the creeks her community relied on for drinking water and fish. Now, the outsiders wanted to widen the trail into a road to access the towering rainforests that unite the Peruvian and Brazilian border along the Juruá River. María Elena Paredes, as head of the Sawawo Hito 40 monitoring committee, said no, and her community stood by her. She knew she represented not just her community and the other Peruvian Indigenous communities, but also her Brazilian cousins downstream who also rely on these forests, waters and fish. Roads beget more roads. The Interoceanic Highway, shown here, allowed logge...