Five degrees of change—a half zone. Not average temperature; this is based on the average last freeze. I gave a presentation to the Austin Organic Garden Society last month and I remembered USDA had recently come out with new hardiness zone maps. The USDA changes in 2012 are not so much different than the 2006…
More Evidence of West Antarctic Ice Sheet Disintegration from the Jackson School of Geosciences in Austin The West Antarctic Ice Sheet (WAIS) is the only “marine ice sheet” remaining on Earth. A “marine” ice sheet is one that whose base rests on rock below sea level. These peculiar ice sheets were numerous during ice ages…
Across the northern hemisphere, extreme heat that once happened across 0.1 to 0.2 percent of the Northern Hemisphere now happens across ten percent–every year. The most extreme events are happening nearly 5,000 times more often than normal. April 14, 2012: In Just the Last 30 Years, Climate Extremes Have Increased 10 to 100 Times— Dr….
In the twelve months prior to April 16, high temperature records outnumbered low temperature records 3 to 1. James Hansen told the U.S. Senate in 1988 that “it is time to stop waffling so much and say that the evidence is pretty strong that the greenhouse effect is here.” After all of the recent unprecedented…
What was previously thought to be the threshold or complete melting of the Greenland Ice Sheet was an average global warming of 3.4 to 9.2 degrees F has now been refined to 1.4 to 5.8 degrees F. this is roughly half the warming that we previously understood. What was previously thought to be the threshold…
It is not because of increased population and it is not because of increased observation. Think that our growing population is enduring increasing impacts from severe weather and you would be correct. But adjusting extreme weather events for what the scientists call “population bias” is nothing new. What is new is the amount of…
