Rio summit: Little progress, 20 years on
On the final day of the UN sustainable development summit in Rio, UN chief Ban Ki-moon has urged governments to eliminate hunger from the world.
The secretary-general said in a world of plenty, no-one should go hungry.
The final phase of the summit has seen pledges from countries and companies on issues such as clean energy.
But a number of veteran politicians have joined environment groups in saying the summit declaration was “a failure of leadership”.
