1. How much of the population in the sugarcane region of El Salvador has chronic kidney disease?
(a) 1/5.
(b) 1/3.
(c) 1/10.
(d) 1/7.

2. Who wrote the two-part book Carbon Ideologies?
(a) Paul Ehrlich.
(b) William Vollmann.
(c) E. O. Wilson.
(d) Irakli Loladze.

3. In "Hunger," the author gives a basic rule of thumb regarding climate and plants. He states that for staple cereal crops grown at optimal temperature, for every degree of warming, the yields decline by how much?
(a) 10%.
(b) 15%.
(c) 5%.
(d) 20%.

4. Approximately how many Muslims participate in the hajj each year?
(a) 5 million.
(b) 1 million.
(c) 3 million.
(d) 2 million.

5. How many people were killed around the world by inland flooding between 1995 and 2015?
(a) 142,000.
(b) 633,000.
(c) 157,000.
(d) 234,000.

Short Answer Questions

1. According to the author, the concrete and asphalt of cities absorb so much heat during the day that when it is released at night, it can raise the local temperature as much as how many degrees Fahrenheit?

2. How much carbon is said to be contained in the Arctic permafrost in Part I: Cascades?

3. How many signatories are there on the Paris climate accords (as of the time of the book's publication)?

4. When was Norman Borlaug born?

5. How much did carbon emissions grow in the year 2017?

(see the answer key)

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