Original Published Date: 
Friday, February 8, 2013

Media by University of Wollongong          
What  was Earth’s climate like almost four billion years ago? Given that the Sun was  30% cooler, was the Earth chilly or did an atmosphere much richer in greenhouse  gases keep it warm? These are among some of Earth’s secrets being answered by  researchers supported by an Australian Research Council Discovery Project grant. The research aims to solve problems surrounding Earth’s early climate almost four billion years ago, and to  understand the part that life might have already played in regulating it.