Scientists are worried because they can’t fully explain the big jump, but they think it might mean that carbon absorption by forests, fields and wetlands is slowing down—a major problem for the world.

Levels of carbon dioxide — the most abundant planet-warming gas in the air — jumped up by a record amount in 2024.

Carbon dioxide in the atmosphere hit “next-level” highs, scientists say. Earth’s ecosystems breaking down under extreme ...

Earth Day began 55 years ago on this date, April 22, 1970, in the United States. The movement was spearheaded by Wisconsin ...

While the Earth Day movement has helped raise awareness about human-amplified climate change and has led to some regulatory ...

The Madison branch of the 50501 movement held an Earth Day “Artivism” event Tuesday afternoon at the Wisconsin State Capitol.

To study Mars’s chemical and mineral makeup, the Curiosity rover drills one to 1.5 inches down into the subsurface, then ...

Farmers apply nitrogen fertilizers to crops to boost yields, feeding more people and livestock. But when there's more ...

The new data, collected by the agency’s Global Monitoring Laboratory, showed that carbon dioxide ... The average concentration of CO2 in the lowest level of the atmosphere for 2024 was 422.7 ...