Speak to any hard-bitten older farmer around me in Somerset, or anywhere in Britain, and they will tell you that they grew up among fields teeming with corncrakes, grass snakes, hares, hedges full of yellowhammers and other songbirds, car windscreens splattered with bugs after the shortest summer drive, nearly all now gone. 98% of wildflowers, gone. Huge shoals of herring, cod, and other fish in the sea, a distant memory. Across almost every indicator, the losses during just one human lifetime have been catastrophic. The data is all there, as are the anecdotes. Britain is among the most nature-depleted countries on earth.