Senate set to approve treaty fighting climate super-pollutants

Good morning and welcome to The Climate 202! Below, we have more updates on the damage and power outages in Puerto Rico from Hurricane Fiona. But first: Senate will

likely approve Kigali Amendment to the Montreal Protocol this week When Congress passed the biggest climate bill in U.S. history this summer, not a single Republican voted

for the measure.  But now, Congress is poised to deliver a bipartisan win on climate action, as the Senate appears set to ratify a treaty amendment fighting climate

super-pollutants with plenty of Republican support. The details: Senate Majority Leader Charles E. Schumer (D-N.Y.) has teed up votes this week on the Kigali Amendment to

the 1987 Montreal Protocol, which compels countries to phase down hydrofluorocarbons, or HFCs — planet-warming chemicals used in air conditioning and refrigeration that are

hundreds to thousands of times as powerful as carbon dioxide. The Senate will vote on a motion to invoke cloture on the Kigali Amendment this afternoon. If 60 senators

vote to invoke cloture and end debate on the amendment, a final vote will likely happen Thursday. At that point, the Kigali Amendment would need the approval of a two-thirds

supermajority of the chamber — 67 senators if all 100 senators are present — to become law. Backers of the amendment remain optimistic about its passage, pointing to

widespread support from both environmental groups and business heavyweights such as the U.S. Chamber of Commerce and the National Association of Manufacturers.