As blistering summer heat envelops, if not us, then the eastern two-thirds of the nation, made worse by a vicious storm that knocked out power in the mid-Atlantic states, terrifying infernos roared across subdivisions in Colorado. Last summer, great fires raged in Russia and earlier this year a record number of killer tornadoes ripped across America’s midsection.

By most accounts, weather in much of the world is both dryer and wetter and the storms more intense than a decade ago. Last year, we witnessed the most extreme weather in the history of United States record keeping. We learned last week that searing heat and drought in Midwest have shriveled a bumper corn crop.

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