Reuters: In another sign of a warming planet, there were twice as many record-high temperatures in the United States as record lows over the last decade, climate scientists reported on Thursday. This does not mean there are no record lows, just that there are fewer of them, said Gerald Meehl of the National Center for Atmospheric Research in Boulder, Colorado. A parallel study of temperatures in Australia showed about the same results over the same period, Meehl said in a telephone …