University of Göttingen

Scientists have discovered the single largest repository of gold in the world that makes Fort Knox look like a piggy bank. Making up 99.999% of all the precious metal on the planet, it's just sitting there for the taking. However, there is a catch.

Agriculture requires huge amounts of land and resources, and as the human population grows our food supply will be put under increasing stress. But a new study shows that farming protein from microbes could be a far more sustainable and efficient system.