Biden attends COP26 climate summit and apologizes for Trump withdrawal from Paris Agreement

President Biden attends the COP26 climate summit in Glasgow, Scotland, the most notable UN climate conference since Paris 2015. Biden apologizes to world leaders for Donald Trump's withdrawal from the Paris Agreement and commits the U.S. to cutting emissions 50-52% below 2005 levels by 2030. The summit produces the Glasgow Climate Pact, the first agreement to explicitly commit to reducing coal usage. More than 100 countries pledge to end deforestation by 2030. Critics note Biden's ambitious pledges are undercut by his inability to pass the Build Back Better Act's $555 billion in climate investments at home.