deliverchuck grassley the republican response. he spoke about bipartisanship in congress. obama: one of the most urgent challenges of our time is climate change. 2015 it is the warmest year on record. 2016 is on pace to be even hotter. when i took office i said we couldn't take this down the road any longer. we got to work. over the past seven and a half years we've made ambitious investments in clean energy. we have multiplied solar power more than 30 fold. areasts of america these are dirtier than conventional power. it is at its lowest level in 25 years. even as we are continuing to grow the economy. we have invested in energy efficiency and slashing carbon in this -- emissions from home appliances. manageeforming how we sources that supply roughly 40% of america's coal. we've set the first-ever national standards limiting the amount of carbon pollution they can release into the sky. we've also set standards to increase the distance our vehicles can go on a gallon of gas. at a time we've seen auto sales surge manufactures are innovating and bringing new technologies to