Boris Johnson, London's mayor, arrives at an event in east London on December 4, 2012, wearing a woollen hat. Photograph: Andrew Winning/ReutersThe one thing we can now forecast with near certainty during any cold snap is that a Telegraph writer will use the plunging mercury to breezily state ...

This year has been one of those worst-of-years and best-of-years. In its failures, there are signs of hope.An unprecedented stream of extreme weather events worldwide tragically reminded us that we’re losing the fight against climate change. For the first time since 1988, climate change was totally ignored in ...