How can the use of geothermal energy help address climate change?

A. Geothermal energy can be extracted locally, the government will not import fuels.

B. Power plant is quite high and there is no guarantee that the amount of energy to be harnessed could really justify the capital.

C. Increased use of geothermal energy could help reduce greenhouse gas emissions.

D. Drilling on the earth's crust may release some poisonous gas and minerals which could post harm to the environment. ​