It warns carbon emissions must be cut sharply
Copenhagen (Denmark) : The United Nations’ expert panel on climate science has finished a report on global warming that the UN’s environment agency said offers “conclusive evidence” that humans are altering the Earth’s climate system.
According to The Guardian, the stark report states that climate change has already increased the risk of severe heatwaves and other extreme weather and warns of worse to come, including food shortages and violent conflicts. But it also found that ways to avoid dangerous global warming are both available and affordable. The document, combines the findings of three earlier reports, was adopted after all-night talks by the Intergovernmental Panel on Climate Change.
The scientists and government representatives on the panel, who jointly approved the document line by line, then rested for a few hours before resuming the session in Copenhagen to finish the document.
Apart from discussing the human influence, the report is expected to describe how climate impacts, including melting Arctic sea ice and rising levels, are already happening and could become irreversible unless the world curbs its greenhouse gas emissions.
The IPCC says scientists are now 95 per cent certain that the buildup of such gases from the burning of fossil fuels and deforestation is the main cause of warming seen since the middle of the 20th century.
IPCC vice chair Jean-Pascal van Ypersele wrote on Twitter that the report was adopted on Saturday afternoon following round-the-clock talks.
The UN Environment Program said the report “offers conclusive scientific evidence that human activities continue to cause unprecedented changes in the Earth’s climate.”
In an interview with The Associated Press, UNEP head Achim Steiner said the world has the technology and capacity to act, and needs to do so urgently.
The cost of achieving emissions cuts increases exponentially with each year “because you will have to make far more drastic changes in our economy,” Steiner said.
