President Donald Trump signed an executive order on Tuesday that will begin a lengthy process of dismantling former President Obama’s signature achievement on climate change – regulations that put limits on greenhouse gas emissions from power plants. Trump boasted about a new era of American energy, telling coal miners standing behind him, “You know what it says, right? You’re going back to work.” The Clean Power Plan aimed to reduce CO2 emissions from power plants by 32 percent below 2005 levels by 2030. But removing the Clean Power Plan is not as easy as signing an executive order. It will take years even if things go well. The EPA can’t just ignore or scrap the rule; the administration will have to craft a repayment plan and justify it with science. And the rulemaking process is not always a smooth one. With environmental groups promising legal action, it will likely […]