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By Kenneth Richard on 8. May 2017
Share this…FacebookTwitterSea Levels Meters Higher While CO2 Levels Were Below 300 ppm Image Yoon et al., 2017 Before the advent of the industrial revolution in the late 18th to early 19th centuries, carbon dioxide (CO2) concentrations hovered around 280 parts per million (ppm). Within the last century, atmospheric CO2 concentrations have risen dramatically. Just recently […]