The U.S. will aim to halve greenhouse gas emissions by 2030 as part of its new commitment to the Paris climate agreement, President Joe Biden will announce Thursday.
Biden will make the pledge, called the Nationally Determined Contribution, when he speaks at a two-day virtual climate summit attended by dozens of world leaders Thursday morning, the White House said. Biden rejoined the 2015 climate pact in February, reversing a decision by President Donald Trump to withdraw the U.S. from the global coalition to curb carbon emissions.