5. What are the names of Dr. Hansen\'s three grandchildren mentioned in the vide
ID: 154133 • Letter: 5
Question
5. What are the names of Dr. Hansen's three grandchildren mentioned in the video? (3 pts) 6. When Dr. Hansen gave the talk and per the video, what was the Earth's total energy imbalance? Name the two comparisons Dr. Hansen uses to illustrate how much extra energy the Earth is gaining each day. (3 pts) 7. What level of carbon dioxide (in parts per million) does Dr. Hansen cite as needed to restore energy balance and prevent further warming? (1 pt) 8. According to Dr. Hansen, how much ice is lost by Greenland and Antarctica per year? (1 pt) 9. What does Dr. Hansen predict for sea level rise this century? (1 pt) 10. What is the prediction by the Intergovernmental Panel on Climate Change for the percentage of species marked for extinction if a "business as usual" attitude prevails regarding fossil fuel use? (1 pt) 11. Which two drought events did Dr. Hansen cite with a high degree of confidence as caused by global warming? (2 pts) 12. What is the global dollar amount that fossil fuel companies are subsidized as cited by Dr. Hansen? (1 pt)Explanation / Answer
5. Dr. Hansen’s three grandchildren were Sophie, Connor, and Jake.
6. As per the video, Earth’s total energy imbalance is about six-tenths of a watt per square meter.
To explain how much extra energy the Earth is gaining each day, he compared the rate of energy used by humankind and energy extracted from Hiroshima bombing. The energy imbalance is 20 times greater than the rate of energy use by all of humanity and also equivalent to exploding 400,000 Hiroshima atomic bombs per day 365 days per year.
7. CO2 must be reduced from 391 ppm, parts per million (ppm), back to 350 ppm to restore energy balance and prevent further warming.
8. According to Dr. Hansen, several hundred cubic kilometers ice is lost in Greenland and Antarctica per year.
9. According to Dr. Hansen, this century will see a huge rise in sea level, at least a 1-meter increase. When CO2 level was 390 ppm, today’s value, sea level was higher by at least 15 meters, 50 feet. If the warming cannot be controlled, sea level can raise up to 5 meters, which is 18 feet.
10. Intergovernmental Panel on Climate Change predicted that 20 – 50 % of species will be under extinction by the end of the century if this “business as usual” attitude prevails regarding fossil fuel use. Monarch butterfly could be one of those species.
11. Drought events of Texas and Moscow were caused by global warming as cited by Dr. Hansen with confidence.
12. The global dollar amount that fossil fuel companies are subsidized as cited by Dr. Hansen is 400 to 500 billion dollars per year worldwide.
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