HumansHave we vastly underestimated the total number of people on Earth? A new way of estimating rural populations has found that we may be undercounting people who live in these areas, potentially inflating the global population beyond the official count of 8.2 billion – but not everyone agrees 51¶¯Âþ
LifeWe may have discovered how dark oxygen is being made in the deep sea A newly discovered mechanism could explain the shock finding last year that oxygen is produced by metallic nodules on the seafloor – and it might be happening on other planets, too 51¶¯Âþ