March 30, 2017

Airborne particles cause more than 3m early deaths a year

GOVERNMENTS fret over traffic and other local nuisances that create filthy air. But research just published in Nature by Zhang Qiang, of Tsinghua University in Beijing, […]
March 30, 2017

Small-brained birds get killed by cars

I’m okay. I know the Green Cross Code NATURAL selection is a harsh interrogator at the best of times. But if you are a bird, it […]
March 30, 2017

A simple device designed to detect chemical weapons

NERVE agents such as sarin and VX can kill quickly in low doses. Kim Jong Nam (pictured), half brother of Kim Jong Il, North Korea’s leader, […]
March 29, 2017

Climate refugees: Tragedy of a village built on ice

There’s a cemetery in the heart of this Arctic village, its white crosses blending into a backdrop of snow. In the cemetery are two men I’ve […]