Guardian: A proposal for a giant global fund to pay the owners of the world’s forests not to cut them down has received a guarded welcome from environmental groups. They warn of the risks of giving rich nations a cheaper alternative to cutting their own greenhouse gas emissions and to the human rights of the tens of millions of people who live in or who depend on forests for their livelihoods. The independent report, revealed by the Guardian, was written for the prime minister, Gordon Brown, …