
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 s)een 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. Hence, a possible reason why large blooms of jellyfish were invading the south coast of England.