Global warming is the biggest hoax of the 21st century; a delusion created by first world countries and corporate giants to market the concept of sustainable innovation and take lunch money from the third world.
I can understand the weakness of the mathematical models, the opportunism of politicians everywhere, and the market potential it has. But I honestly question your accusations of "conspiracy" and "hoax". First, the science is there, there's no question about that. Second, it's true, as Milareppa said, that the climate science is unique in its dependence on data over long periods of time.
But, having said that, I don't see the big "take over" by green technology. If anything, fossil fuels still rule the markets, and I don't think any other nation sans the US has a big deal with alternative energy corporate policies. For example, the EU last year proposed implementing a version of the carbon tax on jetliners--both China and the US opposed it.
Politically? The Kyoto Protocol was amongst the big things that came out of the hoopla of Al Gore and the carbon movement, and it's virtually worthless as of now. Copanhagen was also pointless. Carbon taxes are generally ignored.
Green companies? They haven't taken over mainstream energy in the US, and one need only look at solar company bankruptcies to realize this (Solyndra). The same goes for governmental support. You need only keep up with the Wall Street Journal to feel the intense animosity that right wing and a majority of indepdendents have for Obama due to EPA policies and solar subsidies (not to mention the near biweekly exposition of scandalous details of EPA policies or details). Hell, there's generally a greater focus politically on shale oil and gas, if anything. That's the "next big thing", and both Obama and Romney put a huge amount of attention to it. Observe the Keystone XL issue.
It is very true that China heavily subsidizes its solar and green technological companies, but that also applies for practically all of its heavy industries. You might hear about Mitt Romney harking on about Chinese dumping of solar products onto the US and EU, but you might not also know that Chinese petro-explorers and drilling companies such as CNOOC and SinoPec have made frequent trips to diverse places outside the First world, such as Myanmar, Sudan, Brazil, among other places. Batiste (spelling), Brazil's shining billionaire, is putting his bets on oil production as his next big thing for Brazil. We're talking about one of the rising stars, the BRICS. That speaks volumes of where the "big guns" are moving.
Ethanol? It's only a big thing in select countries such as Brazil and Sweden, and this is because the economics just happen to make sense there--this has been documented by academics of both economics and policy.
I honestly don't see green technologies really "starving" third world countries. A number of African nations are making their cash off of petroleum exports (again, queue China), and even where green tech has some niche role, it's beneficial rather than forced (I personally know a number of people working for a solar tech company back in Colombia).
Point? You might complain about politicization of science, personal manipulations, and even falsification of data. You might complain about botched and malicious policies. BUT, you can't, without appealing to some "Illuminati" theory, posit that global warming is some great big plan to take over the world or screw over the Third World. The evidence isn't there.