Nick Clegg on the Rio+20 Summit

The Liberal Democrat leader and deputy prime minister has written a guest blog on next week's Rio+20 Summit - held two decades after the original Earth Summit for the RSPB:

First, national governments must move beyond a narrow understanding of wealth. Right now we judge how well a country is doing by looking almost exclusively at the money it makes. But to fully judge success we need a kind of ‘GDP+’, which takes into account the state of assets like forests or coastal areas – vital natural capital. 

We’re reforming the UK’s national accounts so that, by 2020, they also reflect our natural wealth. In Brazil I’ll be pressing our international partners to follow suit.

The charity is also inviting questions for Nick. It will put the best 20 to him on his return from Brazil.