A piece up at Techcentralstation.com giving a view of ecological footprints. A fairly negative one it must be said.
One line that got edited out for reasons of brevity:
“The consistent 1-2 % rise each year in crop yields over the past 50 years can also be seen as us humans increasing the supply of agricultural land by 1-2 % a year over the past five decades. Just further proof that we humans create resources by the invention and application of technology rather than resources being something which exist in fixed amounts over time.”