One year ago, leaders from all over the U.S. — representing businesses, investors, colleges, universities, towns, cities, and states throughout America — joined together to declare “We Are Still In” the global Paris Agreement, promising to world leaders that America will fulfill its global commitment to reduce greenhouse gas emissions and curb the damaging effects of climate change.mNow, with nearly 2,800 signatories and growing, representing 160 million Americans and more than $6.2 trillion of the U.S. economy, this diverse cross section of the economy is helping to ensure the U.S. remains a global leader in climate change.