Food supply at risk from species loss

Reuters, May 14th 2008, has an article about governments missing goals to slow the rate of extinctions and how the loss of biodiversity will result in putting food supplies at risk. They says,

Governments are set to miss a self-imposed goal of slowing the rate of extinctions by 2010 and as a result are putting long-term food supplies at risk, a top environmentalist said before a U.N. biodiversity conference.

There is no question that the long-term sustainability of the world's food supply depends in no small part on how we take care of the world's biodiversity.

U.N. experts warn the planet is facing the worst spate of extinctions since the dinosaurs died out 65 million years ago. Some estimates say a species vanishes every 20 minutes, due mainly to human activity and greenhouse gas emissions.

What about the theory of evolution and the “survival of the fittest”. At some point the next weak species to die out will be us.