two major shifts

Climate change has always been a cultural question: what do we value?

With 23 weeks till Copenhagen, Gordon Brown today outlines 'the road map' in terms of two major shifts in how we think.

'The first is to think not in political or economic cycles ... And the second is to think anew about how we judge success as a society ... In the end, without environmental stewardship, there can be no sustainable prosperity and no sustainable social justice.'

It's slightly weird. After 10 years as Chancellor and two years as Prime Minister, he's telling the rest of us not to think in political and economic cycles and how we need to redefine success.

As Nassim 'Black Swan' Taleb says in one of only four tweets: 'Those who did not see the problem ... will not see the solution.'