John Vidal, who was in Rio for the '92 Earth summit, looks back at that momentous event, and how the 2012 version compares Helicopters thundered up and down the chic Copacabana and Ipanema beaches. Tanks guarded the bridges and tunnels. The favelas were in lockdown, schools closed and supermarkets stood empty. Unexpectedly, George H W Bush, the 41st US president, flush with success at the collapse of communism, had arrived in...

-The Hindu The United Nations Conference on Sustainable Development (Rio+20) is set to take place on June 20 at Rio de Janeiro, 20 years after the 1992 Earth Summit on Environment & Development. World leaders, experts, and U.N. agencies are expected to take stock and reaffirm global commitment to sustainable development. The summit is taking place against the backdrop of threats of catastrophic climate change, unprecedented environmental degradation and widespread market...

-The United Nations Sustainable development will not be achieved unless hunger and malnutrition are eradicated, the United Nations food agency warned today in a new report. “We cannot call development sustainable while this situation persists, while nearly one out of every seven men, women and children are left behind, victims of undernourishment,” said the Director-General of the Food and Agriculture Organization (FAO), José Graziano da Silva, in a news release. In the report...

-FAO On the path to Rio+20, FAO calls for a future with both healthier people and healthier ecosystems Sustainable development cannot be realized unless hunger and malnutrition are eradicated, FAO said in a policy document prepared for the Rio+20 Summit to be held in June in Rio de Janeiro. "We cannot call development sustainable while this situation persists, while nearly one out of every seven men, women and children are left behind, victims...

Weather events such as extreme temperatures and drought caused global agricultural losses of 11.4 billion dollars in 2011, while 12 million hectares of farmland are lost to land degradation every year, and unsustainable agricultural practices contribute to the emission of greenhouse gases. These and other data provided by a report released Wednesday in London by leading scientists from 13 countries raise the question of how to curb the environmental crisis, guarantee...