{"version":1,"type":"rich","provider_name":"Libsyn","provider_url":"https:\/\/www.libsyn.com","height":90,"width":600,"title":"Cooling Earth with asteroid dust, and 3 billion missing birds","description":"On this week\u2019s 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-linkTK.] (Read the related research article in Science Advances.) And I talk with Kenneth Rosenberg, an applied conservation scientist 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\u2019s episode was edited by Podigy. &amp;nbsp; Ads on this week\u2019s show: MOVA Globes; KiwiCo.com &amp;nbsp; Listen to previous podcasts. &amp;nbsp; About the Science Podcast &amp;nbsp; [Image: Public domain; Music: Jeffrey Cook] &amp;nbsp; &amp;nbsp;++ Authors: Sarah Crespi; Josh Sokol ","author_name":"Science Magazine Podcast","author_url":"http:\/\/www.sciencemag.org","html":"<iframe title=\"Libsyn Player\" style=\"border: none\" src=\"\/\/html5-player.libsyn.com\/embed\/episode\/id\/11315147\/height\/90\/theme\/custom\/thumbnail\/yes\/direction\/forward\/render-playlist\/no\/custom-color\/88AA3C\/\" height=\"90\" width=\"600\" scrolling=\"no\"  allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen><\/iframe>","thumbnail_url":"https:\/\/assets.libsyn.com\/secure\/item\/11315147"}