In the past 10 years the idea that trees communicate with and look after each other has gained widespread currency. But have these claims outstripped the evidence? There are a lot of humans. Teeming is perhaps an unkind word, but when 8 billion people cram themselves on to a planet that, three centuries before, held less than a tenth of that number, it seems apt. Eight billion hot-breathed individuals, downloading apps and piling into buses and shoving their plasticky waste into bins – it is a... Read this story
