"There was once a president of the United States recently in the news named Jimmy Carter. He thought that there was an energy problem and he gave, in effect, talks to the nation in his cardigan sweater saying about how you should save electricity. He put into the roof of the White House a solar thermal converter which circulated cold water to the roof, and on sunny days in Washington sunlight heated this water and in repeated passes it made it very hot, and when it was time for a Presidential shower, here was hot water that did not rely on a power plant. He was succeeded by a President named Ronald Reagan. One of the first acts in office of President Reagan was to rip out the solar thermal converter from the roof of the White House at considerable cost—after all, it was in there and working—because he was ideologically opposed to alternatives to fossil fuels. We lost twelve years in research into these alternatives during the Reagan-Bush administration."
Carl Sagan -- 1994 Keynote