The UN’s climate science panel unveiled (part 1of) its Sixth Assessment Report (AR6) on Climate Change on Aug 9, 2021, the first since AR5 in 2014. This 3949 page report is called “The Physical Basis”. A 150 page Technical Summary and a 39 page Summary for Policy Makers has also been published, among other volumes. The World and Science has changed a lot in the intervening seven years. It provides projections for temperature and sea-level rises less than three months before the climate summit -Conference of Parties COP26-  in Glasgow-Scotland. After two weeks of virtual negotiations, 195 nations (including India) approved the Intergovernmental Panel on Climate Change’s (IPCC) comprehensive assessment of past and future warming on Aug 6, 2021 in the form of a “Summary for Policy Makers” (SPM). The text, vetted and approved line by line, word by word, paints a grim picture of accelerating climate change and dire threats.[i]