BBC: Changing farming practices could play an important role in averting dangerous climate change says the UN.
In their annual emissions report, they measure the difference between the pledges that countries have made to cut warming gases and the targets required to keep temperatures below 2C.
On present trends there is likely to be an annual excess of 8 to 12 gigatonnes of these gases by 2020.
Agriculture, they say, could make a significant difference to the gap.
This is the fourth such report,...