The U.S. and the European Union are set to announce at key climate talks next month that at least 35 countries have joined a global pact to cut methane emissions, according to an official.
The pledge to rein in output of the potent greenhouse gas is already backed by nations including the U.K., Canada and Germany. The U.S. and the EU will likely reveal additional signatories at the COP26 summit on Nov. 2, the official said, asking not to be identified discussing a confidential matter, and declining to name them.
