EarthWorld's first tunnel to a magma chamber could unleash unlimited energy In Iceland, scientists are planning to drill two boreholes to a reservoir of liquid rock. One will give us our first direct measurements of magma – the other could supercharge geothermal power Features
TechnologyCooling system could replace air con and drastically cut energy use A heat-pump-like system that relies on a phenomenon called electrocaloric cooling could heat or chill a room almost twice as efficiently as standard air-conditioning units News