Al Jazeera: Global climate negotiators have gathered in Lima, Peru, for the annual United Nations climate change conference COP 20, to discuss how to combat climate change and who should pay for curbing the world's fossil fuel emissions.
There is a prevailing theory it should be the rich industrialised nations as they have been responsible for the majority of greenhouse gases. And five years ago, they were pledging to increase funding by $100bn a year by the year 2020.
The UN estimates as much as $175bn...