Climate change v Africa

Speaking at the sidelines of the World Economic Forum in Davos, Mr Gates and his wife Melinda said Gavi - which has committed $2.6bn (£1.3bn) to support immunisation programmes in 70 developing countries - had only made an impact because governments had supported the cause.
Mr Gates said Africa had failed to follow Asia's path of rapid economic development because it had a different spread of diseases, geography and quality of governance.
Asked whether they were worried that the issue of climate change could push the plight of Africa from the agenda, Mr Gates said he believed that the world should be able to keep more than one issue on top of its mind.
Melinda Gates, however, said while Africa was still high on the agenda of the G8 group of industrialised nations, one had to be careful not to let it slip, because it would "take us a long time to help Africa".
Mr Gates is the world's richest man, and he and his wife had contributed about $30bn to set up the Bill and Melinda Gates Foundation which focuses on health and education initiatives.
In June last year the world's second-richest man, Warren Buffett, said he would donate $37bn of his money to be administered by the Gates foundation.