Numerous studies suggest that global engineering can be developed to reduce greenhouse gases. What would global engineers strive to do?
a) reduce sunlight hitting the Earth and keep the polar ice caps solid
b) supply Earth with a cooling system and an atmosphere scrubber
c) reduce sunlight hitting Earth and remove human-caused greenhouse gases from the atmosphere
d) all of the above
Question 2
What two main factors contribute to the global rise in sea level?
a) carbon dioxide and excess rainfall
b) thermal expansion of ocean water and increased amount of ocean water from melting ice
c) thermal expansion in trenches and ridges
d) thermal expansion and carbon dioxide level
e) all of the above