Nature's sting: The real cost of damaging Planet Earth


You don't have to be an environmentalist to care about protecting the Earth's wildlife

Just ask a Chinese fruit farmer who now has to pay people to pollinate apple trees because there are no longer enough bees to do the job for free.

And it's not just the number of bees that is dwindling rapidly - as a direct result of human activity, species are becoming extinct at a rate 1,000 times greater than the natural average.

The Earth's natural environment is also suffering.

In the past few decades alone, 20% of the oceans' coral reefs have been destroyed, with a further 20% badly degraded or under serious threat of collapse, while tropical forests equivalent in size to the UK are cut down every two years.

These statistics, and the many more just like them, impact on everyone, for the very simple reason that we will all end up footing the bill.

For the first time in history, we can now begin to quantify just how expensive degradation of nature really is.

A recent, two-year study for the United Nations Environment Programme, entitled The Economics of Ecosystems and Biodiversity (Teeb), put the damage done to the natural world by human activity in 2008 at between $2tn (£1.3tn) and $4.5tn.

At the lower estimate, that is roughly equivalent to the entire annual economic output of the UK or Italy.

A second study, for the UN-backed Principles for Responsible Investment (PRI), puts the cost considerably higher. Taking what research lead Dr Richard Mattison calls a more "hard-nosed, economic approach", corporate environmental research group Trucost estimates the figure at $6.6tn, or 11% of global economic output.

This, says Trucost, compares with a $5.4tn fall in the value of pension funds in developed countries caused by the global financial crisis in 2007 and 2008.

Of course these figures are just estimates - there is no exact science to measuring humans' impact on the natural world - but they show that the risks to the global economy of large-scale environmental destruction are huge. 

(BBC News)

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