It could reasonably be called the largest investigation in the world. For the past three years, hundreds of scientists have been trying to work out how people interact with the world’s ecosystems, and how those interactions affect both our health and that of the planet.
The preliminary results are now in, and they don’t make pretty reading. People are adding seven times as much nitrogen to the environment as a century ago, mainly via fertilisers. By 2030, two-thirds of the world’s population will be living in water-scarce regions, and our arable land will need to double its output to supply us with enough food. Robert Watson,…
