Barry Gardiner MP, shortened piece on biodiversity (BBC Green Room)
For the past 16 months I have put off upgrading my mobile phone because two years ago a little girl was stung by a jellyfish on a beach in south-west England.
Let me elaborate: it is demand for the latest mobile phones that has made the metal coltan so valuable, leading to conflict in the Democratic Republic of Congo.
That conflict has caused deforestation, which has seen a decline in the number of forest mammals.
As a result, more people demand more fish as an alternative protein, leading to overfishing of species higher up the food chain.
Fishermen, in turn, have shifted their focus to species further down the food chain, reducing their population. This has allowed jellyfish become the lower reaches of the food chain.
Web of life
Every form of life on this planet stands not on its own but is supported by, and supports, other living things.
Lose one species and you lose a vital part of some ecosystem.
That means you lose not just a plant or an insect but a service: you lose the medicine that comes from that plant; you lose the pollination of crops which that insect provides.
As species die, so biodiversity is depleted and with it the ecosystem services that such biodiversity provides.
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