On 09/06/2013 09:01, polygonum wrote:
On 09/06/2013 08:49, harry wrote:
Renewable technologies are about saving fossil fuel.

What is the reason to save them?

None whatsoever, given that we already have the technology to breed oil
from algae feeding on human or animal waste. Admittedly it currently
costs $800 a barrel, but that is in laboratory conditions and the cost
could be expected to plummet were it to be done on an industrial scale.

Colin Bignell