In 2004 Sir David King, Chief Scientist in Tony Blair’s government, began saying that global warming is a greater threat than terrorism. Hans Blix, who ran the UN weapons inspection programme in Iraq, said the same. Studies made for the Pentagon and the World Bank recommended immediate action to address imminent threats posed by global warming, with the Pentagon’s report warning that global warming is a greater threat than terrorism. With this idea in mind, the Bush administration’s terrorism warning system has been redesigned. The new advisory system clarifies the climate change threat levels facing people everywhere. Please re-learn the threat levels: Earth Day comes only once a year, but the environment needs year-round care.