In his 2011 Easter sermon, the Archbishop of Canterbury issued an outspoken attack on the greed consuming the world’s civilized nations. Speaking against the rush for oil, power and territory, the Rt. Rev. Rowan Williams argued that the comforts and luxuries that people take for granted can not be sustained forever. He forecast that civilization itself would one day collapse from the over-production and consumption.
The full essay is at "Greed and Christian Ethics in Profit-Seeking."