Climate Change:

ACIA lead author McBean talks science, international politics of global warming

The recent Arctic Impact Climate Assessment warned of major effects on humans, plants and animals and national economies from rapid Arctic warming. But what are nations with Arctic territory doing about it? Will the economics and politics of curbing greenhouse gases take precedence over science? On today's OnPoint, University of Western Ontario professor Gordon McBean, lead author of the Arctic Climate Impact Assessment, talks about Arctic warming and the outlook for international action.