We speak to Chris Field, a leading member of the Nobel Prize-winning Intergovernmental Panel on Climate Change, about his warning that the amount of greenhouse gases in the atmosphere is rising more rapidly than expected in recent years. Field says the current trajectory of climate change is now much worse than the IPCC had originally projected. On Wednesday, Field told a Senate panel droughts caused by global warming could make parts of the American Southwest dangerous to live in.
Christopher Field, founding director of the Carnegie Institution’s Department of Global Ecology and professor of biology and environmental earth system science at Stanford University.
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