91av

Environment

Getting off the ground

What is holding back the development of geothermal energy? There must be an awful lot...

8 July 2015

What is holding back the development of geothermal energy? There must be an awful lot of energy down there.

Robert Watts, Bristol, UK

We pay £25 for every answer published in 91av. To answer this question – or ask a new one – visit newscientist.com/lastword. Terms and conditions apply.

Topics:

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with 91av events and special offers.

Sign up
Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop