Many of Silicon Valley's most prominent tech leaders have embraced President Donald Trump in his second term.

More than 300 businesses and investors are calling on the Biden administration to set an ambitious climate change goal that would cut U.S. greenhouse gas emissions by at least 50% below 2005 levels by 2030.

The rule, which was made final in 2019, replaced the Clean Power Plan, the Obama administration's signature program to address climate change. The court decision came on the last full day in office for the Trump administration. The Clean Power Plan, one of President Barack Obama’s legacy efforts to slow climate change, was blocked in court before its 2017 repeal. The Trump administration substituted the Affordable Clean Energy plan, which left most of the decision-making on regulating power plant emissions to states. “It looks like we’re kicking off a new era of clean energy progress a day early,” Castor said.