For Mitt Romney, the convention provides his latest attempt to re-introduce himself to the American people. But what's that old ad tag line? "You never get a second chance to make a first impression." It's not a Don Draper line but it sounds like it ought to be.
As the climate has warmed over recent decades, high temperatures have arrived earlier on average, and a symphony of seasonal events along with them, from plant blooming dates to animal migrations to peak flow levels in snow-fed streams.