On 08/10/2013 20:25, dennis@home wrote:

I assume there are still a few people around who think the world really
is flat or that the greenhouse effect is what warms greenhouses.


So you don't believe the greenhouse effect warms greenhouses.
I think that is fairly easy to prove, but perhaps not to a denyer like you.

Not what I said. The greenhouse effect makes a negligible difference in
greenhouses. If there was no greenhouse effect you wouldn't notice the
difference in temperature in a greenhouse. Perhaps that is where the
deniers get the idea that CO2 is inconsequential as a greenhouse gas.
--
Roger Chapman