Wildfires across the globe are contributing to conditions that make future fires more likely, new research finds. The study estimates that brown carbon emissions from sources like wildfires are a ...

Climate tipping points are thresholds within Earth’s climate system beyond which change becomes self-reinforcing and, in some cases, irreversible on human timescales. Rather than unfolding gradually, ...

The climate is changing and nowhere is it changing faster than at Earth's poles. Researchers at Penn State have painted a comprehensive picture of the chemical processes taking place in the Arctic and ...