The overwhelming majority of funding for climatologists comes from taxpayers. Politicians fund the grants that pay the climatologists. If there is nothing to fear, then there is no money. Do you see the motivation now?
Then, to take it even further, the politicians wish to tax carbon to further fund their programs that keep getting them elected. So they have a huuuuge incentive to pass legislation to further their political goals. Add to that the scumbag companies like Goldman Sachs (who according to a Rolling Stone article, are responsible more than any other for the multiple balloon bust cycles we've been through) who will get to rake in hundreds of billions from a scheme like that and the motive becomes crystal clear.
As much as I don't like Big Oil....and i really don't, they do at least provide an essential product for the money we give them. Goldman is set to make hundreds of billions for merely shuffling paper from one side of the room to the other.
The most recent IPCC report estimates the cost to change over society to a "renewable" energy system is 76 trillion dollars. That's more than the GDP of the planet by several times. And all along the way wealthy bankers, politicians, bureaucrats and companies who are friends of the politicians involved get to steal your money and the whole stated goal of all of this money redistribution is the lowering of global temperatures by ONE degree in 100 years. Maybe.
Do you really think that a 76 trillion dollar investment, and the reordering of society, all so the super wealthy can become the ridiculously wealthy, with all of the attendant death and destruction that that will cause, is worth it?
Here's the link to the official UN report so you can't say I'm making it up. Feel free to read it.
http://www.un.org/en/development/desa/policy/wess/wess_current/2011wess.pdf