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Record US Heat Wave to Worsen

A heat wave that has broken records across the western United States is expected to worsen over the next few days. Temperatures have broken records across much of the western half of the country, with a high of 115 in Las Vegas and 119 in Phoenix on Saturday. San Antonio, Texas reached 108, a record for that city. Death Valley temperatures hovered around 124. The highest temperature ever recorded on Earth was 134, recorded in July of 1913 in Death Valley.

In recent weeks, the Northern Hemisphere has experienced unusually violent and changeable weather due to a double jet stream phenomenon, with a weaker jet stream circling the arctic while a stronger one dipped south. At one point last week, it was hotter in Anchorage than it was in Miami. Throughout the summer, warm moist air colliding with unusually cold air in the mid and upper latitudes of the region has caused almost continuous violent weather across the center of the continent, including severe flooding in places as far apart as Calgary and South Texas.

Authorities are worried that temperatures may go higher next week, reaching into areas where they pose a health hazard especially for young children and the elderly. Power systems across the region are being stretched to the limit, and if the heat increases, controlled brownouts or outright power failures will be likely. The highest temperature a human can safely endure varies depending on the age and health of the individual and the amount of humidity involved. In general, the higher the humidity, the lower the safe temperature. Under present conditions, temperatures above 120 will become dangerous for infants and elderly people who do not have access to air conditioning. Above 115, anybody working outdoors is at risk of heat stroke.

  • Image Credit:
  • NASA Earth Observatory


Actually it is no longer true that the Death Valley temperature was the highest recorded, a recent infrared satellite survey recorded surface air temperatures in places like the Namib desert and elsewhere as high as 70 degrees celsius.

"The highest temperature ever recorded on Earth was 134, recorded in July of 1913 in Death Valley"
this reminded me of a friend who only listened to AM talk radio telling me that Global Warming wa a MYTH because all the heat records were only 5-8 years old. Duh. We will destroy this planet in the name of Fourth Quarter PROFITS.

George Carlin from a 1992 show - stick with this clip to the end. He says it all when he sums up human's affect on the planet as "arrogant meddling".
http://www.youtube.com/watch?v=EjmtSkl53h4&oq=george%20carlin%20environm...

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