This is the letter for week 65 of a weekly climate strike that went on for 4 years in front of San Francisco City Hall, beginning early March 2019. 1CA faces massive increases in flooding from extreme storms caused by climate change driven atmospheric rivers. “Climate change may push polar bears to the brink of extinction within 100 years, study says”. “The scientist who first warned of climate change says it’s much worse than we thought”. “Today’s Climate Change Is Worse Than Anything Earth Has Experienced in the Past 2,000 Years”.