Biden pledges to cut US carbon emissions 50-52% by 2030 at Leaders Summit on Climate

On Earth Day, President Biden hosts the Leaders Summit on Climate, convening 40 world leaders virtually. He formally submits the US's new Nationally Determined Contribution (NDC) to the Paris Agreement, committing to reduce greenhouse gas emissions 50-52% below 2005 levels by 2030, the most ambitious US climate pledge ever made. The summit produces renewed commitments from Japan (46%), Canada (40-45%), and others to raise their own targets. Biden frames climate action as an economic opportunity, stating "When I think climate, I think jobs." The pledge doubles the US commitment under the Obama-era NDC and requires massive acceleration of clean energy deployment, transportation electrification, and building efficiency.