It's been "not a secret" for a very long time. Scientists were meaningfully speculating on the effect that spilling CO2 into the atmosphere would have since the

It's been "not a secret" for a very long time. Scientists were meaningfully speculating on the effect that spilling CO2 into the atmosphere would have since the (very late) 19th century. Here's an old scientific article talking about it, if you're interested. [PDF] http://www.rsc.org/images/Arrhenius1896_tcm18-173546.pdf http://www.rsc.org/images/Arrhenius1896_tcm18-173546.pdf Amazing that we have had so much time to think about this problem.