It is impossible to say with certainty how bad the 21st century's heating will be, but there is a large chance of it getting hot enough to do harm, and a far from trivial chance of things turning catastrophic.

ECONOMIST: Climate controversies

Especially when it's hot and sunny and all you want to do is lie down.

BBC: Digging for Victory

True, it is more difficult to operate in hot climates than in temperate ones, and disease and pestilence do nothing for labour productivity, but these are hardly spellbinding insights.

ECONOMIST: Growth and geography

Large hardware makers always seem eager to compete with the market leaders when new hot products come about but I do not think there is room for everyone.

FORBES: HP's Palm Purchase: Pennywise But Pound Foolish