b) Paris Agreement

The United States’ rejoining of the Paris Agreement in January 2021 marked a renewed commitment to global climate action. Originally adopted in 2015, the Paris Agreement is a landmark international accord aimed at reducing global greenhouse gas emissions and limiting global warming. The U.S. initially entered the agreement under President Barack Obama, but later withdrew under President Donald Trump. The decision to rejoin under President Joe Biden signified a significant shift in U.S. environmental policy, aligning the nation with global efforts to tackle climate change. The move underscored the importance of international cooperation in addressing environmental challenges and the role of the U.S. as a key player in global climate initiatives.