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Author Archives: Anonymous

Greenhouse gases absorb:

Greenhouse gases absorb:

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The PDO negative phase…..

The PDO negative phase…..

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The loss of Arctic Sea Ice can result in a: 

The loss of Arctic Sea Ice can result in a: 

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You are researching ice cores.  The bottom of your core has…

You are researching ice cores.  The bottom of your core has been dated at 500 CE (common era).  The ice at this depth and age contains a higher ratio of O18 (Oxygen Isotope 18) than O16 (Oxygen Isotope 16).  What can you conclude about the temperatures and the amount of ice on Earth at this time?

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Oceanographers or geographers that study climate change can…

Oceanographers or geographers that study climate change can use foraminifera to see what type of oxygen was around at a certain year before present because their shells are composed of calcium carbonate.  Calcium carbonate contains __________ that are used to calculate past climates.

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The regional changes in weather and climate patterns that ar…

The regional changes in weather and climate patterns that are occurring attribute to anthropogenic greenhouse emissions is called

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  The Paris Agreement lays out global commitments on climate…

  The Paris Agreement lays out global commitments on climate change to reduce CO2 starting in 2020 and was signed by 174 countries.  The expected primary result of the agreement is to limit global warming to less than ___

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This dendrochronology record is from Arizona. The thick laye…

This dendrochronology record is from Arizona. The thick layers could be representative of __________ .

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Obliquity, or the Earth’s axial tilt is currently in the mid…

Obliquity, or the Earth’s axial tilt is currently in the middle of its range.   The tilt of the earth influences_______________

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Since 1958 Carbon Dioxide measured at the station of Mauna L…

Since 1958 Carbon Dioxide measured at the station of Mauna Loa have increased by _____ (hint: look at what it was in 1958 and you should know current levels as discussed in class as this chart does not show up to current levels).     

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