No it is not invalid , that's just to prove that usage has declined and they all say it has .( also pretty sure demand is calulated on state/ national level, not reidential vs whatever .Your first article pertains to residential usage. So it is invalid in this context.
As for how real "climate change" is:
http://www.carbonneutral.com.au/climate-change/10-myths.html
http://www.globalclimatescam.com/ US site
http://www.globalwarminglies.com/
Further, the valadility of global warming dosent matter at all. Weather global warming is happening ( it totally is ) world economies are moving to a carbon taxed future , (south africa china india japan s. korea taiwan nz denmark finland france, ireland , netherland, sweedan, uk , norway, switzerland,, costa rica canada , US) all dem countries have implimented, are planning to implement , or have implimented it on a state level, or have a similar program . Eventually other.countries will follow, and soon there will be a international carbon tax thing, if aus dosent implement a tax now we will soon be uncompetitive in a carbon taxed global Eco.
Sry for mistakes I'm on phone and it's annoying =_=