Nature and EnvironmentHarnessing clean energy from volcanic rocksTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and Environment07/12/2018July 12, 2018Uganda has lost two thirds of its forest cover since the late 1990s – mostly cleared to provide charcoal for burning. But now an innovative idea to use volcanic rocks for cleaner cooking provides a greener alternative.https://p.dw.com/p/31MU1Advertisement