Global warming was said to be causing extreme weather, rising sea levels and loss of Arctic ice
Global carbon dioxide emissions must almost halve within 12 years to avoid a catastrophic loss of coral reefs and Arctic ice, intense floods and droughts, according to a UN report.
Preventing the worst effects of climate change will require “unprecedented changes in all aspects of society” costing £1.8 trillion a year. The changes include a rapid switch to electric vehicles, huge expansion of renewable energy and closing hundreds of coal-fired power stations.
The Intergovernmental Panel on Climate Change (IPCC) said that the global average temperature should be limited to 0.5C in addition to the 1C increase that has already occurred since pre-industrial times.