A new study in the journal Science is predicting rising temperatures here in this country will likely result in a permanent drought throughout Arizona and the Southwest by the year 2050. Scientists say the drought could result in conditions not seen since the 1930s Dust Bowl. Back in Brussels, the World Wildlife Fund called for governments to take action to stop global warming. This is Hans Verolme, the director of the WWF’s global climate change program.

Hans Verolme: “So what we are looking for and what we are trying to secure is a commitment to reduce emissions from the rich 30 percent by 2020. And we were very encouraged a few weeks ago when the European heads of state reached a tentative agreement that, if the rest of the world does their fair share, Europe will do what is necessary — that is, a minus 30 percent reduction by 2020.”