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HammerTh_1701 t1_ivj7zfy wrote on November 8, 2022 at 11:03 AM

Reply to comment by Mick_86 in [OC] First and last frost dates for Concord, NH for 80 years. The growing season is getting longer. Repost because the image got deleted somehow. by reficius1

That was a small bout of global cooling, probably caused by sulfurous air pollution. Fixing the acid rain problem made the climate change problem worse.