President Donald Trump’s executive order rolling back Obama’s signature global warming measure, which was a core part of the U.S. commitment to reduce U.S. greenhouse gas emissions 26 to 28 percent below their 2005 levels by the year 2025.
President Donald Trump’s executive order rolling back Obama’s signature global warming measure, which was a core part of the U.S. commitment to reduce U.S. greenhouse gas emissions 26 to 28 percent below their 2005 levels by the year 2025.