Mother Jones: What will be the hardest thing to fix in the Bush administration's legacy to science?
James Hansen: The hardest thing to fix will be the result of Bush reneging on his campaign promise to declare CO2 from power plants as a pollutant. It is practically impossible to retrieve the CO2 once it has been emitted. Much of it stays in the air more than 1,000 years. Because of his broken promise many coal-fired power plants were built, that would not otherwise have been built. Very hard to fix—there is a strong reluctance to bulldoze a new power plant that cost more than a billion dollars to build. Our great-grandchildren will suffer because of his broken promise.