Earth’s carbon dioxide levels are likely the highest they've been in 15 million years

It\'s quite likely that we’ve boosted Earth\'s carbon dioxide -- a potent greenhouse gas -- to the highest levels they’ve been in some 15 million years. #globalwarming #carbondioxide #greenhousegas

https://mashable.com/2018/10/29/climate-change-carbon-pollution-15-million-years/?utm_cid=mash-prod-nav-sub-st