Nature World: Global warming is here, and "severe, widespread and irreversible" damage may be inevitable unless faster action is taken to reduce fossil fuel emissions, a newly leaked UN report has warned.
The 127-page report states that further pollution - caused by the burning of fossil fuels, such as coal, oil and gas - will contribute to problems like rising sea levels and extreme weather, such as heat waves, flooding and droughts.
"Without additional mitigation, and even with adaptation, warming by the...