This article comes from President of the Czech Republic, Vaclav Klaus via the Financial Times -

As someone who lived under communism for most of his life, I feel obliged to say that I see the biggest threat to freedom, democracy, the market economy and prosperity now in ambitious environmentalism, not in communism. This ideology wants to replace the free and spontaneous evolution of mankind by a sort of central (now global) planning.

The environmentalists ask for immediate political action because they do not believe in the long-term positive impact of economic growth and ignore both the technological progress that future generations will undoubtedly enjoy, and the proven fact that the higher the wealth of society, the higher is the quality of the environment. They are Malthusian pessimists.

The scientists should help us and take into consideration the political effects of their scientific opinions. They have an obligation to declare their political and value assumptions and how much they have affected their selection and interpretation of scientific evidence.

Does it make any sense to speak about warming of the Earth when we see it in the context of the evolution of our planet over hundreds of millions of years? Every child is taught at school about temperature variations, about the ice ages, about the much warmer climate in the Middle Ages. All of us have noticed that even during our life-time temperature changes occur (in both directions).