This month’s open thread for climate science topics. A new two-part community assessment of tropical storms and climate change is online at BAMS: Knutson et al. [cite ref=”(2019a”]10.1175/BAMS-D-18-0189.1[/cite] ; [cite ref=”2019b)”]10.1175/BAMS-D-18-0194.1[/cite]. And for those interested in Arctic Sea Ice, there is always the NSIDC.