Perhaps with positive-feedback-global-warming there will not be as much need for NG for space heating purposes in 2020.

Alas, I wish it were so, but with global warming more natural gas will be used in generating electric power for air conditioners. And, on the other hand too much global warming may raise the temperature of the oceans, causing a release of methane gas from the ocean depths, which would accelerate global warming and if this continued.............things could get very toasty.

If Piebalgs gets his wish, then more biofuels will be produced in the world. Since he's against deforestation, that means more artificial nitrogen fertiliser use, which means more natural gas goes into that. So the production of ethanol drives the price of natural gas higher.

N-fertilizer is only about 2% of total natural gas consumption and it's not particularily difficult to produce from numerous other sources(E.g hydrogen from gasification + water gas shift of some corn stover, saw dust, bagasse, waste paper).