Phys.org September 2024
While the magnitude of changes in mean and extreme climate are broadly studied, regional rates of change, a key driver of climate risk, have received less attention. Using large ensembles of climate model simulations an international team of researchers (Norway, UK) showed that nearly three quarters of the global population can expect strong and rapid changes in extreme temperatures and rainfall in the next 20 years unless greenhouse gas emissions are cut dramatically. Their research showed that 20% of the population could face extreme weather risks if emissions are cut enough to reach the aims of the Paris Agreement, compared to 70% if limited action is taken. However, internal variability is high for 20 year trends. They found that rapid clean-up of aerosol emissions, mostly over Asia, leads to accelerated co-located increases in warm extremes and influences the Asian summer monsoons… read more. TECHNICAL ARTICLE