This week leaders from throughout the world are meeting in Copenhagen to discuss the impact of global warming. The issue is still hotly debated in the US (pun intended), while polls in many other secular Western nations reveal wider agreement with the theory.

Best-selling author Michael Crichton became an outspoken skeptic of man-made global warming before his death in 2008. In this video Crichton uses his background in anthropology to explain why environmentalism is based more on religion than science. Do you agree? And how do you think the church ought to respond to the popular green movement?