The climate change industry is worth $1.5 trillion, according to a story in Insurance Journal.
Their story references a news source I was unaware of, the Climate Change Business Journal.
According to Insurance Journal, “Interest in climate change is becoming an increasingly powerful economic driver, so much so that some see it as an industry in itself whose growth is driven in large part by policymaking.
The $1.5 trillion global “climate change industry” grew at between 17 and 24 percent annually from 2005-2008, slowing to between 4 and 6 percent following the recession with the exception of 2011’s inexplicable 15 percent growth, according to Climate Change Business Journal.”
Climate Change Business Journal is selling a 200 page report that says among other things, “CCBJ estimates today’s climate change consulting market at $1.9 billion worldwide and $670 million in the United States. These figures are expected to more than double in the next five years, even fully accounting for the financial meltdown of 2008. We believe the Climate Change Consulting Industry will have an even steeper and faster growth trajectory than the Environmental Consulting Industry, which in 1976 had billings of $600 million but today generates $27 billion.”
You could buy a lot of solar panels with that kind of money.
Not a word about the brothers Koch, sadly.
The Lukewarmer's Way 
An “industry” that has produced basically nothing of value.
Wow, the parasite is achieving the ability to destroy the world economy.
Here is a reasonable way to deal with so-called climate policy, given that cliamte has become a third rail:
http://www.bna.com/jeb-bush-takes-n17179934073/