On July 29, we cross an alarming threshold. This date marks Earth OvershootDay, the point each year at which humanity starts to consume the world'snatural resources faster than they can be replenished.It's taken us only 209 days to burn through a year's worth of resources --everything from food and timber to land and carbon. We are using up nature1.75 times faster than it can be replenished. To do this sustainably, we wouldneed the resources of 1.75 Earths.These latest figures come from Global .