Is Capitalism Destroying our World?

The following link (http://uts.cc.utexas.edu/%7Erjensen/freelance/wesjackson.htm) brings you to an interesting interview from 2004 between Rober Jensen from the University of Texas University School of Journalism and Wes Jackson former Professor of Environemntal Studies at the California State University Sacramento, he is the founder and current president of The Land Institute.
The interview focuses on land use and agriculture and Wes highlights the destructive nature of capitalism and the energy intesive systems we currently use to survive. Is what he is saying correct and if so what will take the place of our current capitalist system?