Two-thirds of world's resources 'used up'

Two-thirds of world's resources 'used up'. That is the headline in the Guardian and the BBC.

· Because of human demand for food, fresh water, timber, fibre and fuel, more land has been claimed for agriculture in the last 60 years than in the 18th and 19th centuries combined.

· An estimated 24% of the Earth's land surface is now cultivated.

· Water withdrawals from lakes and rivers has doubled in the last 40 years. Humans now use between 40% and 50% of all available freshwater running off the land.

· At least a quarter of all fish stocks are over harvested. In some areas, the catch is now less than a hundredth of that before industrial fishing.

· Since 1980, about 35% of mangroves have been lost, 20% of the world's coral reefs have been destroyed and another 20% badly degraded.

· Deforestation and other changes could increase the risks of malaria and cholera, and open the way for new and so far unknown disease to emerge.

None of these should be a real surprise a couple of years ago an other report showed that humans have changed 83% of all land.

The Human Footprint

Analysis of the human footprint map indicates that 83% of the land's surface is influenced by one or more of the following factors: human population density greater than 1 person per square kilometer, within 15 km of a road or major river, occupied by urban or agricultural land uses, within 2 km of a settlement or a railway, and/or producing enough light to be visible regularly to a satellite at night. 98% of the areas where it is possible to grow rice, wheat or maize (according to FAO estimates) are similarly influenced.

It's time that the people of the world face the fact that if we want to continue as a species we need to reallocate are resources and look to colonization of space. Because it looks like if we don't. Nature will hit the reset button and we won't be part of the new order.