内容摘要：Transgender dancers with the Paraiso de Tuiuti samba school rehearse in heels for the Carnival parade in Rio de Janeiro, Monday, Feb. 17, 2025. (AP Photo/Silvia Izquierdo)

Transgender dancers with the Paraiso de Tuiuti samba school rehearse in heels for the Carnival parade in Rio de Janeiro, Monday, Feb. 17, 2025. (AP Photo/Silvia Izquierdo)

The change in ice is part of an overall altering of the base of the food chain: plankton. When those tiny creatures change it means “a whole shift in the prey base of belugas,” Vergara said.Arctic cod, a high-fat fish that is key in beluga diets, is diminishing, said beluga expert Pierre Richard of the Northern Studies Center in Churchill and author of three whale books. But he said it’s an open question on whether belugas can adapt.

In the Beaufort Sea, research shows that belugas aren’t as fat as they used to be, but scientists don’t know about those in Hudson Bay, Richard said. Another issue is that killer whales that hunt belugas are coming more often into the Hudson Bay and less sea ice means fewer places for belugas to hide, he and University of Washington marine mammal scientist Kristin Laidre said.“Whether belugas in the Hudson Bay are suffering from these ecosystem changes is not clear at all,” Richard said.as a species aren’t on an

There are as many as 200,000 belugas worldwide and the International Union for Conservation of Nature that creates a global endangered list calls them a species of “least concern,” so Vergara said she often gets asked why not concentrate on animals in more imminent danger.Erin Greene, center, owner of Sup North, stands on her paddleboard in the Churchill River while leading a tour, Thursday, Aug. 8, 2024, in Churchill, Manitoba. (AP Photo/Joshua A. Bickel)

Erin Greene, center, owner of Sup North, stands on her paddleboard in the Churchill River while leading a tour, Thursday, Aug. 8, 2024, in Churchill, Manitoba. (AP Photo/Joshua A. Bickel)

“I would say that the threat to animal cultures can happen much quicker than the extinction of an entire species,” Vergara said. And if subpopulations of belugas are wiped out, their cultures disappear too.“I had a gas stove until I started this line of research. Watching pollutant levels rise almost immediately every time I turned a burner on, or my oven on, was enough to get me to switch” to an electric stove, he said.

Induction stoves are also a way to address the considerable amount of climate change that comes from buildings — emissions from cooking,In the case of gas stoves, about half of the flame’s heat escapes into the room. Electric stoves by comparison can be up to 80% efficient. Of those, induction stoves come out on top with up to 90% efficiency in part because they only heat where the surface contacts the pot.

Just the presence of a gas stove in a home contributes to greenhouse gas emissions, even when it’s not turned on. Jackson’s team found gas stoves bleed methane — the main constituent of natural gas — when they’re off, from loose fittings and at connections between the stove and wall. The climate impact of leaky stoves in U.S. homes was estimated to be comparable to carbon emissions from 500,000 gasoline-powered cars.The stove contains a battery that is smart, meaning it can charge up when electrical rates are low, allowing people to cook without incurring peak-rate electrical charges.