The world’s nations will gather at a UN conference in South Korea on Monday to review and approve a 20-page bombshell distilled from more than 6,000 scientific studies — laying out narrowing options for staving off climate catastrophe.
When the 195 countries who signed off on the Paris Agreement in 2015 requested a report from UN-led scientists on the feasibility of capping global warming at 1.5 degrees Celsius, the gesture seemed to many unnecessary.