http://www.ideablob.com/ideas/rss/1444-Create-plastic-shopping-bags-th They can now make biodegradable plastic from corn, soybeans, etc. Use these as part of an existing plastics plant production to make biodegradable shopping bags. They go into the landfill or your own garden as compost. They can now make biodegradable plastic from corn, soybeans, etc. Use these as part of an existing plastics plant production to make biodegradable shopping bags. They go into the landfill or your own garden as compost. Mon, 03 Mar 2008 21:05:20 -0600 comment http://www.ideablob.com/ideas/rss/1444-Create-plastic-shopping-bags-th#comment5390 http://www.ideablob.com/ideas/rss/1444-Create-plastic-shopping-bags-th#comment5390 How high does petroleum need to go in order for this to be feasible? How cheaply can corn-plastic or soy-plastic be made? Tue, 29 Jan 2008 22:22:17 -0600 challenge http://www.ideablob.com/ideas/rss/1444-Create-plastic-shopping-bags-th#challenge832 http://www.ideablob.com/ideas/rss/1444-Create-plastic-shopping-bags-th#challenge832 Biodegradable inks? Probably soy-based. Tue, 29 Jan 2008 22:20:53 -0600 challenge http://www.ideablob.com/ideas/rss/1444-Create-plastic-shopping-bags-th#challenge831 http://www.ideablob.com/ideas/rss/1444-Create-plastic-shopping-bags-th#challenge831