THCB readers may recall last year in early June when the Trump administration announced it would withdraw from the 2015 Paris climate accord and earlier this January when the World Economic Forum met to discuss its global risk report that included the chapter, “Our Planet on the Brink,” I discussed in part (here and here) the health care industry’s indifference to global warming (See also my related 3 Quarks Daily essay.) Now comes the United Nation’s Intergovernmental Panel on Climate and Change’s (IPCC’s ) latest report. Once again overwhelming scientific evidence that confirms life as we know it on this planet will soon cease to exist is received with apathetic insouciance.
Created in 1988 the IPCC is considered the world’s definitive scientific body on climate change and co-winner with Al Gore of the 2007 Nobel Peace Prize, finalized in early October its report, “Global Warming of 1.5°C.” The 2015 Paris accord called for the report. It was prepared by nearly one hundred scientists who analyzed thousands of the most recent scientific evidence. The report’s summary was accepted by over 180 countries including the American and Saudi Arabia delegation during the IPCC’s meeting recently concluded in South Korea.
What is newsworthy about the IPCC report is its conclusion that keeping or holding temperature increases below 2°C, the goal of the Paris agreement, would not avoid the catastrophic effects of global warming. At 1.5°C life on this planet would suffer serious or dire harm, at 2°C catastrophic harm. Specifically, the report compared the impact between a 1.5°C (2.7°F) increase in temperature with a 2°C (3.6°F) increase (The earth has already warmed by 1°C since the pre-industrial era). Among numerous other findings, should temperatures increase to 1.5°C, the report found of 105,000 species studied, four percent of vertebrates (that include us), eight percent of plants and six percent of insects would lose half of their climatically-determined geographic range. At 2°C, the percents double to triple. Global crop yields will decline significantly. At 1.5°C we will lose 70 to 90 percent of coral reefs, at 2°C there will be a 99 percent loss. At 1.5°C Marine fishery losses or the global annual catch loss would be 1.5 million tons, at 2°C they double.