The United States is reducing its greenhouse gas emissions far too slowly to help avert the worst effects of global warming. But what would happen if the country adopted seven of the most ambitious climate policies already in place around the world? Together, these seven policies would slash greenhouse gas emissions in the United States roughly 29 percent below 2005 levels by 2025, and roughly 50 percent by 2050, according to Energy Innovation’s climate policy modeling. To put that in context, under the Paris climate agreement, the United States vowed to cut emissions at least 26 percent by 2025 and laid out a broad goal of reducing emissions 80 percent by midcentury. Assuming these policies worked as intended, they would take the country a big chunk of the way toward deep decarbonization. These are not the only steps the United States could take to address global warming. Many of these policies...
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