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Author Question: Discuss the evolution of international agreements to address the problem of greenhouse gas ... (Read 15 times)

ap345

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on: Jul 14, 2018
Discuss the evolution of international agreements to address the problem of greenhouse gas emissions.
 
  What will be an ideal response?

Question 2

How might the carbonate-silicate cycle have helped to solve the faint young Sun problem?
 
  What will be an ideal response?


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macybarnes

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Reply #1 on: Jul 14, 2018
Answer to Question 1

Answers should include the laws and actions brought about by the following international agreements: the Earth Summit in Rio de Janeiro (1992), the Kyoto Protocol in 1997, and the Durban Accord in 2011.

Answer to Question 2

The carbonate-silicate cycle contains a negative feedback loop that would have mitigated the impacts of the decreased solar luminosity. If the Earth was relatively cool 4 billion years ago, then silicate weathering would have slowed down and the rate of drawdown of CO2 from the atmosphere into the oceans would have also decreased. Slowing down the removal of CO2 from the atmosphere allows CO2 concentrations to increase, thus creating a greater greenhouse effect that compensates for the lower solar luminosity.


ap345

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Reply 2 on: Jul 14, 2018
Great answer, keep it coming :)

amandanbreshears

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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