Answer question (file upload below) Watch this short video and answer the following questions.Answer direct on the file ok Climate Change Activity Part 1.

Answer question (file upload below) Watch this short video and answer the following questions.Answer direct on the file ok Climate Change Activity
Part 1. Permafrost Video
Watch this short video on Permafrost and answer the following questions.

1) What are the local hazards of melting permafrost?
2) What are the global hazards of melting permafrost?
3) What greenhouse gas is released as permafrost melts?
4) Why is the greenhouse gas present in permafrost?
(ppm means parts per million (We will ignore the v in ppmv). So, 300 parts per million carbon dioxide
means that if you had 1 million molecules of atmosphere, 300 of those would be carbon dioxide.)
1) The above graph shows changes in CO2 concentration from 1958-2010. Describe the trend of
the graph.
2) Looking at the above graph, what do you think contributes to the small scale oscillations in CO2
concentration that occur each year (that is, the small, annual increases and decreases). To
answer this question, consider how CO2 is removed from the atmosphere and what would
affect that removal seasonally.
3) If we looked at similar data from San Jose, CA, for example, would you expect a similar trend?
Why or why not?
Identify the point on the graph where the change in slope is most apparent.
4) What historical event happened around this time? ________________________
(When reading the above graph, pay careful attention to what is being depicted on each axis. Note that
the x-axis is showing age in thousand years before present (kyr BP). So, the left side of the x-axis is
modern day on this graph.)
The graph shows that CO2 concentration (taken from ice cores) remained below 300 ppm (parts per
million) during the past 400,000 years.
5) Describe the general trend of the above graph.
6) What is the CO2 concentration in 2010 (we will consider this modern CO2 concentration) based
on the data from the Mauna Loa observatory (the graph on the second page).
7) If you added this point to the Vostok ice core graph, where would it plot? This point should
represent the current CO2 concentrations.
8) Compare the rate of CO2 increase (or decrease) in the last 400,000 years to the rate of increase
(or decrease) in the past few hundred years. (Keep in mind that rate is the change in a given
value over time. It is not simply the change in concentration.)
9) What are two potential causes of the change in CO2 in the atmosphere?
Part 3. Here is a question we don’t really like to address, but it may be something to think
about: Is the US more guilty than most?
2008 Global CO2 emissions
Source: National CO2 Emissions from Fossil-Fuel Burning,
Cement Manufacture, and Gas Flaring: 1751-2008.
1) What percent of the world’s population does the United States possess? (Estimate it based on
the graph on the right).
2) What percent of greenhouse gases does the U.S. contribute to the atmosphere?
3) Compare the population of China to their greenhouse gas contribution.
4) Compare the population of India to their greenhouse gas contribution.
5) Compare the population of Europe to their greenhouse gas contribution.
6) a) In what country does the largest disparity exist (i.e. where the smallest population
contributes the most to the greenhouse effect)?
b) Suggest a reason (or reasons) for this disparity.

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