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The amount of heat-trapping carbon dioxide in the atmosphere has shot past a key milestone -- more than 50 per cent higher than pre-industrial times -- and is at levels not seen since millions of years ago when Earth was a hothouse ocean-inundated planet, federal scientists announced Friday.
If carbon dioxide hits a new high every year, why isn't every year hotter than the last?
Carbon dioxide levels highest in human history
National Laboratories Limited: Latest News, Videos and Photos of National Laboratories Limited
A new 66 million-year history of carbon dioxide offers little comfort for today
The Good Earth
National Laboratories Limited: Latest News, Videos and Photos of National Laboratories Limited
Random thoughts, Page 523
Greenhouse Gas concentrations hit record high. Again.
Climate Monitoring And Diagnostics Laboratory: Latest News, Videos and Photos of Climate Monitoring And Diagnostics Laboratory
Climate Monitoring And Diagnostics Laboratory: Latest News, Videos and Photos of Climate Monitoring And Diagnostics Laboratory