Inter Press Service: Vested interests in fossil fuels have blocked major steps against global warming so far, according to José Goldemberg, who has played a leading role at key times in the climate crisis facing humanity. One of the driving forces behind the United Nations Conference on Environment and Development (UNCED) held in Rio de Janeiro in 1992, when he was the Brazilian interim environment minister, Goldemberg says Brazil today lacks the leadership it exercised at the Earth Summit and in the …