It’s becoming more likely that a key global temperature limit will be reached in one of the next five years. A major study says by 2025 there’s a 40% chance of at least one year being 1.5C hotter than the pre-industrial level. That’s the lower of two temperature limits set by the Paris Agreement on climate change. The conclusion comes in a report published by the World Meteorological Organization (WMO). The analysis is based on modelling by the UK Met Office and climate researchers in 10 countries including the US and China. In the last decade, it was estimated that the chance of any one year reaching the 1.5C threshold was only 20%.
BBC 27th May 2021 read more »
Telegraph 27th May 2021 read more »
As chances that the annual average global temperature will reach 1.5°C in the next five years double, climate change experts warn that Scotland will face ‘more extreme weather’ if so.
Scotsman 27th May 2021 read more »
Researchers have been busy trying to find out more about why many parts of the world are experiencing worse and longer droughts. Californian scientists had cleared up any confusion about Californian droughts. And about droughts in the rest of the Americas, the Mediterranean, western and southern Africa and east Asia. Greenhouse gas emissions and other atmospheric pollution from human causes tend to increase the frequency of drought, the intensity of drought and the maximum duration of drought worldwide. “There has always been natural variability in drought events around the world, but our research shows the clear human influence on drying, specifically from anthropogenic aerosols, carbon dioxide and other greenhouse gases,” said Felicia Chiang, of the University of California Irvine, and now at Nasa’s Goddard Institute for Space Studies in New York. She and colleagues write in the journal Nature Communications that they used a computer simulation to explore drought characteristics, first with “natural” conditions, and then with extra help from atmospheric greenhouse gases from fossil fuel combustion, along with tiny atmospheric particles from power plants, car exhausts and fire to clear land and burn waste.
Climate News Network 27th May 2021 read more »