Ocean species could plummet to levels not seen since the extinction of the dinosaurs As greenhouse gas emissions continue to warm the world’s oceans, marine biodiversity could be on track to plummet within the next few centuries to levels not seen since the extinction of the dinosaurs, according to a U.S. National Science Foundation-supported study in […]
A long-feared scenario in which global warming causes Arctic permafrost to melt and release enough methane—a potent greenhouse gas–to accelerate warming and cause catastrophe probably won’t happen. That is the conclusion of a study appearing in the journal Science that began more than 20 years ago as a query posed by Jeff Severinghaus, a geoscientist at the Scripps Institution […]
A scientist has an idea for reducing global carbon-dioxide emissions — fight Alaska forest fires more aggressively. Carly Phillips, an ecologist with the Union of Concerned Scientists, thinks there is a unique Alaska opportunity to keep carbon in the soil, and in tissues of living trees and other plants. “Alaska stores nearly one half […]
Atmospheric levels of climate-changing greenhouse gases hit a record high in 2018, “with no sign of a slowdown, let alone a decline,” the World Meteorological Organization said. In a report released Monday, the WMO said despite international pledges made under the Paris Agreement, the levels of carbon monoxide, methane and nitrous oxide all surged by […]