UNIT 6: Climate Change/Global Warming TED Talk: Dr. James Hansen Speaking to Glo
ID: 154085 • Letter: U
Question
UNIT 6: Climate Change/Global Warming TED Talk: Dr. James Hansen Speaking to Global Warming/Climate Change 1. What scientist did Dr. Hansen study under at the University of lowa? (1 pt) 2. What is the surface temperature of Venus? Which gas causes these warm temperatures? (2 pts) 3. Name the British scientist that first measured infrared energy absorbing heat via atmospheric capture of carbon dioxide? In which decade did this occur during the 19th Century? (2 pts) 4. In 1981, Dr. Hansen published an article in Science and predicted impacts due to global warming. Name the impacts cited by Dr. Hansen as occurring since publishing the 1981 article. 7 pts) 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)Explanation / Answer
1. dr. hansen study under the professor james van allen , physics and maths in space science.
2. surface temperature of venus is 900 degreee fahrenhite. venus has around 97% carbon di oxide which is able to store the heat in it which makes the temperature of the venus higher. same phenomena of greenhouse effect is works in the earth.
3. british physicist john tyndall very firstly measured infrared energy absorbing heat via atmospheric capture of carbon di oxide in 1850.
4. in this article dr. hansen preicts the impact of greenhouse effect on earth which is-
a. erosion of ice sheets
b. rising of sea level
c. opening of the fabled northwest passage
d. in 21st century world will face drastic climate changes
e. and he said that temperature of earth will increase continuously due to effect of greenhouse effect.
more stronger storms and flooding will faces by some regions.
g. heatwaves and drought will take place
h. waater vapor will increase with its latent heat and rainfall become an extreme event.
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