UN warns of runaway global warming May 27, 2021 2:42:pm Summary by: Daniel Graeber UN warns of runaway global warming The UN’s World Meteorological Organisation in a May 27 report said the odds that global temperatures could spike above pre-industrial levels are increasing quickly. There is a 90% chance that at least one year between now and 2025 will see the highest-ever annual average global temperature. In at least one of the next five years, there is a 40% chance that the global average temperature will breach 1.5°C above pre-industrial levels. The 1.5°C mark is the target limit spelled out in the Paris climate accord. The odds that level will be exceeded, the WMO said, are increasing over time.