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...

Chinese officials have welcomed this week's scheduled meeting between the Prime Ministers of India and China in Rio de Janeiro as an opportunity to strike common ground with India, with both countries facing “similar pressure” on a host of contentious global issues. Prime Minister Manmohan Singh is scheduled to hold bilateral talks with Chinese Premier Wen Jiabao on the sidelines of Wednesday's Rio+20 United Nations Conference on Sustainable Development, where India,...

-The Christian Sciences Monitor Wealthy Western nations are financially exhausted and unwilling to commit to help fund greener development for poorer nations. Will this week's conference in Rio find any solutions? So what happens if you hold a UN conference on sustainable development, and world leaders make speeches, and sign treaties, and then nothing happens? This, of course, would be absurd. The problem, says Bill Easterly, a development expert at New York University,...

-The United Nations World leaders, along with thousands of participants from governments, the private sector, non-governmental organizations and other groups will come together from 20-22 June in Rio de Janeiro, Brazil, to take part in the UN Sustainable Development Conference (Rio+20).   The Conference aims to shape how countries and their citizens can reduce poverty, advance social equity and ensure environmental protection to achieve long-term growth. Seven key areas have been identified by the...

—AFP U.S. President Barack Obama heads a list of high profile absentees for the Rio sustainable development summit this week where U.N. leaders say some tough decisions will have to be taken for the future of the planet. Britain's Prime Minister David Cameron, Germany's Chancellor Angela Merkel and China's President Hu Jintao will also go to the Group of 20 rich nations' summit in Mexico but then head straight home before the...