Watch 3:14
As temperatures soar, a ‘heat dome’ is coming to the Arctic
After Europe experienced record-breaking temperatures this month, climate scientists are now concerned that a heat wave will settle farther north. This week, a so-called “heat dome” is expected to strike over the Arctic, causing worries about potential ice melt and…
Watch 4:50
With more extreme heat, air conditioning becomes a matter of life and death
According to NASA, last month was the hottest June documented in the past 139 years. And the National Weather Service forecasts record highs, at potentially deadly levels, through the coming weekend. How is climate change related to the extreme heat,…
Watch 6:07
Why planes can’t fly when it’s too hot, and other ways our civilization can’t take the heat
An extreme heat wave is baking the West and Southwest, with temperatures well above 100 degrees. More than 40 flights were cancelled or delayed because some planes can't safely lift off in that heat. Science correspondent Miles O’Brien joins Hari…
Watch 5:47
News Wrap: CDC says 157 pregnant women in the U.S. have Zika virus
In our news wrap Friday, health officials reported that the number of pregnant women in the U.S. infected with Zika virus has tripled to 157, though fewer than a dozen have had miscarriages or babies born with birth defects so…
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