Thermostats have been slow to catch on. Heating, like so much else, was invented by the Romans. Their version of underfloor radiant heating, called a "hypocaust", was surprisingly sophisticated and warmed the chilliest of villas and better still, public baths. It can get nippy inside marble buildings if you're running around naked and wet.
Eurostar international is ordering 10 new high-speed trains for the Channel Tunnel rail link from the German industrial giant Siemens, in the teeth of pressure from the French government to buy from France's Alstom.
Experts say the computer virus found in a nuclear plant is the work of a foreign power
The three largest parties agree climate change is important. But their shiny green consensus is alarmingly lacking in urgency
It's decision day on a chain of solar generators across the desert that could supply a quarter of Europe's power
It is five years since Kellie Moody was talent-spotted at London Fashion Week. A career on the catwalk beckoned. But the work has failed to materialise. Could it have anything to do with the fact that she is deaf? Jerome Taylor investigates
UK investors often shun Europe, but doing so ignores its benefits, says John Greenwood
Ngozi Okonjo-Iweala is a heroine not just of Nigeria, where she is Finance Minister, but of the entire continent. Her crusade against corruption has put her life at risk.