IB Times: The use of renewable energy sources such as solar and wind power will have to be tripled to avoid a potentially devastating 4C-5C rise in global temperatures, the UN has warned.
The Intergovernmental Panel on Climate Change (IPCC) report, to be released in Berlin today, will claim that global greenhouse gas emissions over the past decade were the "highest in human history".
In order to prevent temperatures rising by more than 2C, global greenhouse gas levels will have to be slashed by up to...