U.S. democracy and a free, open society is under siege as Republicans run roughshod over the U.S. Constitution as they seek to stifle scientific climate research and citizen science.
The World Meteorological Organization reports that, for the first time in human history, atmospheric concentrations of carbon dioxide (CO2) eclipsed 400 parts-per-million (ppm) in the northern hemisphere for the entire month of April.CO2 concentration varies with the seasons, generally reaching their highest level early in the northern hemisphere’s spring before seasonal intake of CO2 from vegetation. The first recording of 400 ppm…
