@climpeter @IPCC_CH @mpclimate @bobkopp Meanwhile, in the real world, despite +108 ppmv (+35%) CO2 and +0.839 ppmv (+81%) CH4 increases, sea-level trends at most of the highest-quality long-term measurement sites haven't changed significantly in 9 decades, averaging just 6 inch/century.
sealevel.info/MSL_graph.php?…
@climpeter @IPCC_CH @mpclimate @bobkopp The warming caused by elevated CO2 is modest and benign. The only truly important effects of CO2 emissions are "CO2 fertilization" (greening) and drought impact mitigation.
@climpeter @IPCC_CH @mpclimate @bobkopp The higher CO2 levels we enjoy today have helped to greatly improve crop yields, making food plentiful, and helping to prevent famines. Additionally, since elevated CO2 makes plants more water-efficient, it is especially beneficial in droughts.
@climpeter @IPCC_CH @mpclimate @bobkopp Just like all other hypothetical harms anticipated from climate change, sea-level trends stubbornly refuse to worsen. The evidence is compelling that manmade climate change is modest & benign, and CO2 emissions are beneficial rather than harmful.
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