Hurricanes often weaken as they travel north across colder water and approach land. But Sandy hasn't. One reason is that it's expected to change from a tropical storm powered by warm ocean water to something more like a winter storm powered by temperature and pressure differences in the atmosphere.
It's one thing to admire autumn leaves. It's another thing to become those leaves. Here we proudly present a collection of forest insects who spend their lives looking almost exactly like leaves about to drop from trees. And sometimes, they literally do it!
Move over Abba, Sweden has found new fame. The small Nordic country is breaking records — in waste. Sweden's program of generating energy from garbage is wildly successful, but recently its success has also generated a surprising issue: There is simply not enough trash.
This year, Americans saw a strangely warm winter, a ridiculously hot summer and extreme drought conditions. As Hurricane Sandy advances on the East Coast, folks may be wondering if climate change has come to pass. Let's see what science can tell us.
Forecasters say Hurricane Sandy is heading northeast on an offshore track parallel to the Southeast coast off the Carolinas. NPR's Allison Keyes updates with some of the preparations people are making for the storm.
It's still unclear whether Sandy, which was both downgraded then upgraded early Saturday morning, will be a devastating storm or just a bad one. It is clear, however, that Sandy will be remembered as the storm that broke all the rules and baffled the nation's top weather forecasters.
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