Earth Day (April 22) was a heady occasion for Kim Klockow, 2013-14 Congressional Fellow sponsored by AMS and UCAR. It was her first time in the hot seat testifying before the U.S. Senate.

The new analysis also suggests that the annual overall number of tornadoes has remained relatively constant.

They are next-door neighbors, sharing all the amenities and challenges of the neighborhood—oceans teeming with life, the risk of tropical diseases, a changing climate that may be giving rise to bigger and more frequent hurricanes. And yet, because the neighbors are barely on speaking terms, they cannot share the opportunities and the responsibilities that come with solving the challenges.

Calling it “a seminal event in the history of nuclear power,” the chairman of the U.S. Nuclear Regulatory Commission told the AAAS Forum on Science and Technology Policy that the tsunami-triggered accident at the Fukushima Daiichi facility in Japan is likely to provide nuclear safety lessons for regulators in this country as well as Japan.