Environment under attack?

Came across this article today. Mother Jones is one of my favourite “off the road” sites and I enjoy the articles listed. This one is quite chilling. While I have come across such thinking – there is no global warming – time and time again but I never knew that this “thinking” was so well funded. I wonder if it’s time to start being really concerned about the environment considering that there is such a heavy backing for the opposing viewpoint?