The Warmth of the Earth Discussion Questions

Question Description

I dont understand this Geology question and need help to study.

(5) How much warmer was the planet 65 million years ago?

(10) What caused the temperature to change?

(5) How much warmer was the surface air temperature in the Arctic that it was in the 1981-2010 period?

(10) What are the two methods used for determining ocean temperature changes? Explain how they show temperature changes.

(15) Describe the three hypotheses for cooling during the past 50 million years.

(10) How do we know about sea level, temperatures, and climate or the past?

(10) What are the limiting CO2 contents for glaciation on Greenland and Antarctica?

(40) Explain delta O18 and how it reveals past ice and ocean temperatures.

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