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 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...

-The Guardian  Governments spend years negotiating environmental agreements, but then willfully ignore them – it's a dismal record It's global agreement time again. In two weeks, 120 world leaders and 190-odd countries will go to the Rio+20 Earth summit and – unless the talks collapse – sign up to new international goals, pledges, targets, protocols and treaties, and promise to commit to sustainable development, protect the earth and use resources more wisely....

The cartoon controversy provides the possibility of interrogating the functioning of the academic system to understand its relationship with the downtrodden masses. A new deliberation is needed in order to make the academic world more sensitive and responsive towards the issues and concerns of the subaltern-oppressed communities. This will be an ethical incentive for the present-day dalit movement in India and can bring greater democratisation to the education system. Harish Wankhede...

-The United Nations The number of displaced persons worldwide will significantly grow over the next ten years due to factors such as conflict, natural disasters and climate change, according to the flagship publication of the United Nations refugee agency, launched today, which stresses that international solidarity is needed to address the issue. “The world is creating displacement faster than it is producing solutions, and this means one thing only: More people trapped...