The Earth has been much hotter and much colder than it is now.

BBC: Looking for the greenhouse signal

But for the three-quarters of Kabul too poor to afford to run either kind, the coming five-month power cut means less business, less construction, and a gloomier and hotter (or colder) time of it.

ECONOMIST: It's not just Iraq that has power problems

It's hotter than ever (unless you're in San Francisco, where it's colder).

FORBES