Scientists estimate Earth’s total carbon store Image copyrightGETTY IMAGESImage captionCarbon is all around us – in the trees and in the rocks There are 1.85 billion, billion tonnes of carbon on Earth, with more than 99% of it resident beneath our feet. Scientists from the Deep Carbon Observatory (DCO) project
Facebook faces legal fight over facial recognition Image copyrightREUTERSImage captionFacebook should have done more to tell people it was collecting facial data, say Illinois users A US court has thrown out an attempt by Facebook to stop legal action over the way it collected images of people’s faces. The case
Cities by the sea: six great beach towns in Europe Cádiz, Spain It was a real pigeon’s eye view. The guide atop Cádiz’s Torre Tavira (€6) manoeuvred the concave viewing dish up, down and around, showing us watchtowers, churches, palaces, dockyards – and dozens of roof terraces with flapping laundry.