Article: Climate--we're turning the clock back 3.3 million years | OpEdNews

Article: Climate--we're turning the clock back 3.3 million years | OpEdNews: Article: Climate--we're turning the clock back 3.3 million years - Two new studies add urgency to the climate-change crisis. One shows that there will soon be more CO2 in Earth's atmosphere than at any time in the last 3.3 million years. The second details the human and economic impacts of predicted sea-level rise and coastal flooding.