Guardian: It is a very rare thing for the UK to claim pre-eminence in the much-touted global green economy, so the assembled local dignitaries, industry folk and one cabinet minister were not letting the dismal maritime backdrop put a downer on proceedings. The official opening of the Thanet windfarm off the coast of Kent – the biggest offshore project in the world – means that Britain generates more power from offshore wind than the rest of the world put together. Launching the project …