One month out from the COP26 climate summit, world leaders are under pressure to decarbonise their economies and chart humanity's path away from catastrophic global warming. Half a degree Celsius may not seem like much, but climate experts say a world that has warmed 1.5 degrees Celsius above 19th-century levels compared to 2C could be the difference between life and death. STOCKSHOTS of dried-up sections of Taiwan's Tseng-wen Reservoir and areas where water levels are at less than 10 percent capacity.