AlterNet: The following is an interview with Matthew Stein, P.E., author of When Technology Fails: A Manual for Self-Reliance, Sustainability and Surviving the Long Emergency, from Chelsea Green. Taylor Haynes: A lot of people are now really concerned — or even hopeless — about the state of the world and what our future holds. Peak oil and climate change, the global food crisis, the war in Iraq, a weak economy and a number of recent devastating natural disasters give us real reason for …