The United States formally withdrew from the deal the day after the 2020 presidential election,[9] although President-elect Joe Biden said America would join the deal after his inauguration. [10] While the Paris Agreement ultimately aims to limit the increase in global temperature to 1.5 degrees Celsius over this century, many studies that assess the voluntary commitments made by some countries in Paris show that the cumulative effect of these emission reductions will not be large enough to keep temperatures below this ceiling. . . .