(To get this story in your inbox, subscribe to the TIME CO2 Leadership Report newsletter here.) When President Biden entered the White House in 2021, before his administration had written any new regulations or signed landmark climate legislation into law, I wrote that his presidency had already advanced efforts to address climate change simply by sending a signal to the marketplace that fossil fuels are not the future. [time-brightcove not-tgx=”true”] That signal was the result of policy plans, campaign pronouncements, and, finally, an executive order signed just days into his presidential tenure that called for officials across the government to make climate change central to policy making.