"Trump’s indifference to the risk of climate change are likely to have consequences that dwarf the significance of all his other executive orders. As the alarm bells keep ringing, Trump and his cronies appear determined to let the Earth burn. He has moved relentlessly to stop the government’s efforts to reverse global warming, despite evidence that the Earth is heating up, a point long beyond serious scientific dispute. Americans may largely be bamboozled and for the moment paralyzed by this raw display of arrogance and ignorance by a minority-elected president, but around the world the reaction is building against the US for its destructive new climate policies. The ethicist Peter Singer explains why in his radical call for a boycott of the US. Singer is professor of bioethics at Princeton University and laureate professor at the University of Melbourne. "