[Global Warming Fact of the Day] http://www.slate.com/blogs/future_tense/2014/05/01...

John Irving posted in Global Warming Fact of the Day John Irving 3:15pm May 1 http://www.slate.com/blogs/future_tense/2014/05/01/mauna_loa_atmosphere_measurements_carbon_dioxide_levels_above_400_ppm_throughout.html Carbon Dioxide Levels in Atmosphere Reach Terrifying New Milestone www.slate.com It's official: Earth's atmosphere is now in uncharted territory, at least since human beings evolved... View Post on Facebook · Edit Email Settings · Reply to this email to add a comment.