'I'm moving to Canada': the cops, pop stars and athletes who made good on the threat
From the female squash champion fleeing the Taliban, to the gay popstar who became a hit back in macho Brazil, it’s often Canada’s newcomers who can tell its most dramatic stories
July 2016
Use your head
Can't focus? Maybe it's your body clock
Your circadian rhythm could hold the key to staying sharp – here are six ways to understand when your brain works best
May 2015
Extreme cities
What's the most radioactive city?
Ionising radiation is a fact of life for us all, but for some cities it’s a daily source of worry – and not just the ones near Chernobyl
January 2015
Extreme cities
What's the world's coldest city?
Yellowknife in Canada, where windchill regularly takes the temperature below -30C? Ulaanbaatar in Mongolia, where you have to thaw the ground to bury people? Or Yakutsk in Russia, which few aeroplanes are rated to visit?
May 2014
How do you build a city in space?
A cosy little house on Mars? Cities in space – in pictures
March 2014
Resilient cities
Has the time come for floating cities?
Could our cities be seaworthy – or are remarkable new proposals for floating urban communities merely utopian sci-fi?
