A spokesman for NGOs participating in the Rio+20 summit has said that he rejects the text of an agreement that world leaders are expected to sign up to.
In particular, he opposed the failure to mention fossil fuel subsidies and the abuse of the world's oceans.
He said that, as a result, NGOs are calling for the words "in full participation with civil society" to be removed from the opening paragraph. At a plenary session of the summit he said:
We stand on the brink of Rio+20 being another failed attempt, with governments only trying to protect their narrow interests instead of inspiring the World and giving all of us back the faith in humanity that we need ... The text as it stands is completely out of touch with reality. Just to be clear, NGOs here in Rio in no way endorse this document.
Read his full speech here.
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Paul McCartney has joined a host of stars calling for Rio+20 to protect the Arctic from overfishing and oil exploration.