The Competitive Enterprise Institute (CEI), among many other statements denying the seriousness of global warming, has argued that climate change would create a "milder, greener, more prosperous world" and that "Kyoto was a power grab based on deception and fear."
CEI maintains a website as part of their aggressive campaign to convince the public that global warming is uncertain, and has spent considerable time and effort adding to the echo chamber around "ClimateGate".
Competitive Enterprise Institute (CEI) on ExxonSecrets.org
Competitive Enterprise Institute (CEI) on SourceWatch.org
View "Koch's Web of Dirty Money and Influence"
Koch Industries factsheet