Two weeks ago, delegates met at a follow-up conference in Katowice, Poland, to address procedural questions left unsettled in Paris, including common accounting mechanisms and greater transparency in how countries report their emissions. In this the delegates largely succeeded, giving rise to the hope, as Brad Plumer put it in The Times, that "new rules would help build a virtuous cycle of trust and cooperation among countries, at a time when global politics seems increasingly fractured."
But otherwise it was a hugely dispiriting event and a fitting coda to one of the most discouraging years in recent memory for anyone who cares about the health of the planet ‐ a year marked by President Trump’s destructive, retrograde policies, by backsliding among big nations, by fresh data showing that carbon dioxide emissions are still going up, by ever more ominous signs (devastating wildfires and floods, frightening scientific reports) of what a future of unchecked greenhouse gas emissions is likely to bring.