Renewable energy?

Geothermal Power Plant Triggers Earthquake in Switzerland. I’ve always been a bit dubious about this technology – it just strikes me that we don’t know enough about the Earth’s processes to be messing with transfer of heat energy from under the surface of the Earth for our own purposes. This article highlights the risks:

The engineers and officials of Geopower did inform the authorities and the public that the proposed Deep Heat Mining project posed a risk of triggering small tremors. Quakes of the magnitude actually experienced, however, were not anticipated.

It makes me worry even more about carbon sequestration plans.