1. Richard Alley is the narrator of this program. What is his profession? To what U.S. political
party is he officially registered?
2. What percentage of the world’s current energy supply comes from:
a) fossil fuels (coal, oil, and natural gas?)
b) nuclear?
c) hydropower?
d) solar, wind, and geothermal?
e) wood and dung?
3. From what sources are oil, coal, and natural gas made?
4. Over what time scale (in years) did these fossil fuels form?
Over what time scale (in years) are we burning them up?
5. How do glaciers preserve a record of the earth’s former temperature and atmospheric
composition? 6. When global carbon dioxide (CO2) concentrations were lower and glaciers were larger, what
happened to global sea level? 7. Twenty thousand years ago, during the midst of the last ice age, how much of the entire earth’s
land area was covered by ice sheets? 8. At that point in time, how much lower were global sea levels compared to today? 9. What prompted the initial retreat of the Franz Joseph glacier, and others like it? Does that
explain why it is retreating with the speed and intensity that it is currently retreating today? 10. Scientists have collected ice cores from Greenland (in the North), and Antarctica (in the South).
How old are the oldest cores retrieved from these ice sheets? 11. What is the range of CO2 concentrations over that time, as measured from these cores? 12. How do we know that the rise of CO2 in the atmosphere isn’t just natural variation, but is from
human actions?
What are the 3 different lines of evidence which show that humans are the source of the increased
CO2?
1)
2)
3)
13. What organiztation recently said: “Climate change, energy security, and economic stability are
inextricably linked. Climate change will contribute to food and water scarcity, will increase the
spread of disease, and may spur or exacerbate mass migration.” 14. Who is the single-largest user of energy in the United States?
15. How much per gallon does it cost the Pentagon to get fuel to some forward operating bases in
Afghanistan? 16. What sorts of renewable energy advances are the military using to reduce their reliance on
fossil fuel energy?
17. How could the U.S. Military contribute to the “culture change” required to reduce society’s
dependence upon fossil fuels? 18. Over the next 20 years, how many people are going to be moving into cities in China?
China is going to erect the equivalent of how many Manhattan (NYC) skyscrapers? 19. Which country makes the most solar panels in the world? 20. What is current global energy consumption, in terawatts? (1 terawatt = 1,000,000,000,000
watts) 21. What percent of the sunlight reaching the earth would we have to collect to match the entire
planet’s current energy consumption? 22. What percentages of total current global energy consumption (which you noted in #20) does
Alley predict that the following sources could fulfill?
A) hydro power:
B) biofuels:
C) geothermal (hot rocks):
D) wind:
E) efficiency gains: Reference:
U.S. Energy Facts ­ Energy Explained, Your Guide To Understanding Energy ­ Energy Information Administration. U.S. Energy Facts ­ Energy Explained, Your Guide To Understanding Energy ­ Energy Information Administration. [Retrieved 2017 May 5]. Available from https://www.eia.gov/energyexplained/?page=us_energy_home

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