Dinosaurs survived when CO2 was extremely high. Why can't humans?

How did plants and animals survive around 200 million years ago when the carbon dioxide concentration went up to 6,000 parts per million? Paul Olsen, a geologist and paleontologist at Columbia Climate School's Lamont-Doherty ...

How not to solve the climate change problem

When politicians talk about reaching "net zero" emissions, they're often counting on trees or technology that can pull carbon dioxide out of the air. What they don't mention is just how much these proposals or geoengineering ...

Discovery uncovers need for ammonia emission regulations

A discovery by former Carnegie Mellon Ph.D. student, Mingyi Wang, leading a large collaborative team, sheds light on one way new particles are forming in the upper troposphere. The study, published in Nature, reveals an unexpected ...

UN floats plan to boost renewables as climate worries mount

The United Nations chief on Wednesday launched a five-point plan to jump-start broader use of renewable energies, hoping to revive world attention on climate change as the U.N.'s weather agency said greenhouse gas concentrations, ...

page 2 from 21