Geneva (AFP) – UN chief Antonio Guterres on Wednesday called for a fightback against climate disinformation ahead of next month's COP30 summit after US President Donald Trump branded climate change the "greatest con job ever". Guterres issued a robust defence of "clear-eyed" climate science and data, without which, he said, the world would never have understood the emergence of the "dangerous and existential threat of climate change". "We must fight mis- and disinformation, online harassment, and greenwashing," Guterres said at the UN's World Meteorological Organization (WMO) weather and climate agency. "Scientists and researchers should never fear telling the truth." The...