Geothermal energy is a sustainable source of both heat and power. While geothermal power is possible only in select regions, it constitutes a baseload power source where available. Geothermal heating (and cooling), usually through heat pumps, is possible in many regions of the world. The challenge for enhancing geothermal's contribution to energy security and sustainability has to do with innovations that can make it less costly, more safe and with fewer environmental impacts.
Given below are some of the themes and topics about which you can research to know more about the various avenues available to solve the challenge