President Joe Biden today met virtually with leaders of the world’s major economies, asking them to sign on to a pledge to slash methane emissions and commit more money to help developing countries deal with climate change. It’s the latest in a flurry of diplomatic efforts aimed at securing tangible results at the next UN climate summit that’s six weeks away — a summit that the UN secretary general told the Reuters news agency this week was at risk of failure, due to mistrust between developed and developing countries. The World’s Environment Correspondent Carolyn Beeler reports.