That is the best response when talking to the green cult. No amount of fact will convince them otherwise. Any discussion on the topic will lead to a trip through the Wonderful Land of Oz or Wonderland.
I would love one of them to explain how wind and solar will produce the tar to make asphalt. I would also like one of them to show me alternative energy producing the material to make itself without the use of oil. Mining the raw materials, transport, manufacturing and then deliver the windmills, solar panels and other devices, Now that would be interesting to see with out the use of oil.