Which of the following geoengineering techniques involves capturing greenhouse gases from
smokestacks and pumping it underground?
a. fertilizing the ocean
b. carbon capture and sequestration
c. solar radiation management
d. large-scale forestation
e. atmospheric capture of CO2
Question 2Which of the following statements about coal as an energy source is false?
a. Coal is inexpensive.
b. Coal is sparse.
c. Coal is easily mined.
d. Coal produces about one-third of U.S. electricity
e. Coal produces about 35 of US carbon dioxide emissions