Sunday, July 15, 2012
Newly found weather records show 1930′s as being far worse than the present for extreme weather
...It also is useful for putting the recent heat wave in perspective. Despite the 24/7 caterwauling, only two new state records—South Carolina and Georgia—are currently under investigation. And, looking carefully at Shein et al. dataset, there appears to be a remarkable lack of all-time records in recent years.
This is particularly striking given the increasing urbanization of the U.S. and the consequent “non climatic” warming that creeps into previously pristine records. Everything else being equal—and with no warming from increased greenhouse gases—most statewide records should be in or near big cities. But they aren’t.
This year there were a huge number (many thousands) of reports of daily high temperature records being set across the eastern two-thirds of the country in recent weeks, and even a large number (a few hundred) reports of all-time records high temperatures being set for a particular location. But if only two new statewide records were set, that’s hardly an historic heat wave when considered in its totality....