From Nigel Wake
I was fascinated by the idea that trees may communicate by differences in electrical potential (Â鶹´«Ã½, Science, 13 May). How large are these voltages and what power potential do they have?
Perhaps, by selective breeding to enhance the feature, we could have a plantation of trees all chatting away and making a useful contribution to the electricity grid. A power station that also cleans the air and makes oxygen – it doesn’t get any better than that.
