The COP27 summit kicks off Sunday in Egypt with nearly 200 countries struggling to outpace increasingly dire climate impacts in a world upended by war and economic turmoil.
Just in the last few months, a cascade of climate-addled weather disasters has killed thousands, displaced millions and caused billions in damages: massive flooding in Pakistan and Nigeria, deepening droughts in Africa and the western US, cyclones in the Caribbean, and unprecedented heat waves across three continents.
