CO2 Now

The Need to Know CO2
What We Knew When PDF Print E-mail

 

In December 2008, Scientific American reprinted the following climate change article from its July 1959 issue: "A current theory postulates that carbon dioxide regulates the temperature of the earth. This raises an interesting question: How do Man's activities influence the climate of the future?"

Scientific American  |  Carbon Dioxide and Climate
 
How Scientists Know Details of Earth's Ancient History PDF Print E-mail

 

And how, you may reasonably wonder, can scientists know what oxygen levels were like hundreds of millions of years ago? The answer lies in a slightly obscure but ingenious field known as isotope geochemistry.  
Read more... [How Scientists Know Details of Earth's Ancient History]
 
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