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1. Describe the Carbon-14 (14C) dating method and explain why it is so useful in understanding past climate or past environmental conditions.

 The carbon-14 dating method is useful because it decays in a very predictable way. With carbon-14 scientists are able to compare this with another form of carbon which is carbon-12 and using this knowing that carbon-14 and if it is less reactive then we know it will be older. This is 

 

2. Despite more extensive ice sheets 6,000 years ago, this was the time of peak warmth for the Northern Hemisphere. What factors contributed to this?

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