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Oil production in the world close to peak
Posted on Thursday, March 29, 2007 @ 9:00 pm by Dave Schumaker
No need to thank asteroid for mammalian success
Posted on Wednesday, March 28, 2007 @ 11:55 am by Dave Schumaker
Greenhouse gas effect consistent over 420 million years
Posted on Wednesday, March 28, 2007 @ 11:34 am by Dave Schumaker
White House Efforts To Prevent Climate Change Research
Posted on Tuesday, March 27, 2007 @ 10:34 am by Dave Schumaker
Snowball Earth Theory Undermined?
Posted on Sunday, March 25, 2007 @ 7:22 pm by Dave Schumaker
A UK-Swiss team of researchers, led by Professor Philip Allen of Imperial College London’s Department of Earth Science and Engineering, has found evidence of hot and cold cyclic conditions in glacial sedimentary rocks found in Oman.
These rocks are dated from 850 - 544 Ma, which was during a time that many scientists have said represents a time when Earth experienced massive freezing. This has been dubbed the ‘Snow Ball Earth’ theory.
The research team used a technique called chemical index alteration, which allows scientists to look at the mineral and chemical compositions of sedimentary rocks and determine weathering rates. Higher rates of weathering are generally associated with warmer or more humid conditions. The team found three intervals that related to higher raters of chemical weathering, indicating that there must have been some sort of warmer climate conditions.