Every year, bees contribute over £106.2 billion to the global economy; coral over £6.1 trillion; plankton over £138.7 billion and beavers almost £500 million. These figures were released today by BBC Earth in a pilot model for an Earth Index that demonstrates the financial contribution that nature makes to the world economy every year. BBC Earth published the Earth Index in the financial sections of the Wall Street Journal (US); Times (London); Singapore Business Times … [Read more...] about BBC Earth puts nature on the stock exchange