Cooling Earth with asteroid dust, and 3 billion missing birds

On this week ’s show, science journalist Josh Sokol talks about a global cooling event sparked by space dust that lead to a huge shift in animal and plant diversity 466 million years ago. (Read the related research article in Science Advances.) And I talk with Kenneth Rosenberg, an applied conservation scien tist at Cornell University, about steep declines in bird abundance in the United States and Canada. His team estimates about 3 billion birds have gone missing since the 1970s. This week’s episode was edited by Podigy. Ads on this week’s show: MOVA Globes; KiwiCo.com Listen to previous podcast s. About the Science Podcast [Image: Public domain; Music: Jeffrey Cook]
Source: Science Magazine Podcast - Category: Science Authors: Tags: Scientific Community Source Type: podcasts