Question

question 17 of 30
human activities, including the use of fossil fuels, have contributed to global warming and the rise in sea levels. both of these environmental changes are threatening ecosystems and human communities worldwide. how could governments best cooperate to use treaties to mitigate this problem?
a. they could increase their use of fossil fuels to help get rid of the problems source.
b. they could agree upon limits for emissions of environmentally damaging substances.
c. they could set regulations in their own countries that protect local resources.
d. they could study climate change on other planets to predict its effects on earth.

Explanation:

Increasing fossil - fuel use would worsen the problem (A is wrong). Setting regulations only in own countries is not international cooperation (C is wrong). Studying climate change on other planets is not a practical solution for Earth's current problems (D is wrong). Agreeing upon limits for emissions of environmentally damaging substances through treaties is a cooperative way to mitigate the problem.

Answer:

B. They could agree upon limits for emissions of environmentally damaging substances.