UN: Extremely likely global warming man-made

New report by UN-sponsored panel says 95 percent certain that global warming is a result of human activities.

    UN: Extremely likely global warming man-made
    The full report of the IPCC is to be released on Monday, but Friday's summary provided several key findings [AFP]

    A new report by an international scientific group has listed human activity as the most likely reason behind global warming observed since the 1950s.

    The report by the UN-sponsored Intergovernmental Panel on Climate Change (IPCC) used the strongest words yet on the issue, saying man-made warming was "extremely likely".

    The full 2,000-page report will not be released until Monday, but a summary with key findings was published at a meeting of the IPCC in Stockholm, Sweden, on Friday.

    In its previous assessment, in 2007, the panel had said it was "very likely" that global warming was man-made. It now says the evidence has grown thanks to more and better observations, a clearer understanding of the climate system and improved models to analyse the impact of rising temperatures.

    The report says sea levels are set to rise 26-82 centimeters
    by end of century [EPA]

    "Our assessment of the science finds that the atmosphere and ocean have warmed, the amount of snow and ice has diminished, the global mean sea level has risen and the concentrations of greenhouse gases have increased," said Qin Dahe, co-chair of the working group that wrote the report.

    As expected, the IPCC raised its projections of the rise in sea levels to 26-82 centimetres by the end of the century. The previous report predicted a rise of 18-59 centimetres.

    The IPCC assessments are important because they form the scientific basis of UN negotiations on a new climate deal. Governments are supposed to finish that agreement in 2015, but it's unclear whether they will commit to the emissions cuts that scientists say will be necessary to keep the temperature below a limit at which the worst effects of climate change can be avoided.

    "There are few surprises in this report but the increase in the confidence around many observations just validates what we are seeing happening around us," said Samantha Smith, of the World Wildlife Fund.

    One of the most controversial subjects in the report was how to deal with a purported slowdown in warming in the past 15 years. Climate sceptics say this "hiatus" casts doubt on the scientific consensus on climate change. In the summary of the new report, the IPCC stressed that short-term records are sensitive to natural variability and do not in general reflect long-term trends.

    SOURCE: Al Jazeera and agencies


    YOU MIGHT ALSO LIKE

    Meet the deported nurse aiding asylum seekers at US-Mexico border

    Meet the deported nurse helping refugees at the border

    Francisco 'Panchito' Olachea drives a beat-up ambulance around Nogales, taking care of those trying to get to the US.

    The rise of Pakistan's 'burger' generation

    The rise of Pakistan's 'burger' generation

    How a homegrown burger joint pioneered a food revolution and decades later gave a young, politicised class its identity.

    'We will cut your throats': The anatomy of Greece's lynch mobs

    The brutality of Greece's racist lynch mobs

    With anti-migrant violence hitting a fever pitch, victims ask why Greek authorities have carried out so few arrests.