Methane leaking from pipelines on the floor of the Baltic Sea are only the tip of the iceberg: Scientists have reported that methane emissions from the oil and gas industry are far worse than previously thought.
Speaking to animals has long been a fantasy. But now a dizzyingly ambitious project is harnessing all the power of modern science in an attempt to understand what whales say – and then hold conversations with them.
Towards the end of 2022, the human population on Earth is expected to reach eight billion. To mark the occasion, BBC Future takes a look at one of the most controversial issues of our time. Are there too many of us? Or is this the wrong question?