A tree-planting project in British Columbia, Canada James MacDonald/Bloomberg via Getty Images It would be nearly impossible to plant enough trees to compensate for the climate impact of burning through the world’s fossil fuel reserves. Offsetting the estimated 182 billion tonnes of carbon held in the reserves of the world’s largest fossil fuel companies would…

A talent for murder: Agatha Christie is one of the world’s bestselling writers Shutterstock/Doodeez V Is for VenomKathryn Harkup (Bloomsbury Sigma) Agatha Christie’s  five-decade writing career saw her poison dozens of her characters, supplying the killers in her stories with an assortment of deadly chemicals, including poisons and venoms produced by living organisms and delivered via…

Hominin cranium from Harbin, China, now identified as a Denisovan Hebei GEO University The Denisovans, a mysterious group of ancient humans originally identified purely from DNA, finally have a face. Using molecular evidence, Qiaomei Fu at the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing and her colleagues have confirmed what many researchers suspected: that…