CLIMATE CHANGE: A bull leaps over an electronic fence as he is driven back into the pasture after escaping onto a road in Turner, Maine, on Sunday, May 29, 2016. Ralph Caldwell, 73, right, sold off his dairy business because of the high price of corn needed to feed his dairy cows. He blames the government for subsidizing ethanol and says corn that could be used to feed people is being used for fuel. "We think we are so rich and arrogant that we can burn the world's food supply in our automobiles." Caldwell has lived at the same farm his entire life. "I do believe in climate change but it isn't our fault. The climate changes all the time. The world isn't coming to an end over climate change." (AP Photo/Robert F. Bukaty)