What role does geothermal energy play in renewable energy sources?

Geothermal energy plays a significant role as a renewable energy source primarily by being utilized for heating and cooling purposes. This energy harnesses the heat from beneath the Earth's surface, which can be used directly for heating buildings or in geothermal heat pumps to regulate indoor temperatures. Additionally, geothermal power plants can convert this heat into electricity, contributing to the overall energy supply sustainably.

The utilization of geothermal energy for heating and cooling not only helps reduce reliance on fossil fuels but also mitigates greenhouse gas emissions, making it a valuable renewable resource in climate change efforts. This aspect highlights its effectiveness and relevance in addressing environmental concerns related to energy consumption. By providing a constant and reliable source of energy, geothermal plays an integral part in transitioning to sustainable energy systems.

The other options do not accurately reflect the characteristics of geothermal energy. Specifically, it does not rely on the combustion of fossil fuels or produce waste that contributes to pollution, which are key factors in distinguishing geothermal from non-renewable energy sources.