Climate change report confirms risks

A new report from the Intergovernmental Panel on Climate Change has confirmed global warming on the ground, in the air and in our oceans.

Global warming_252_275And the 250 scientists involved in the work are 95% certain that humans have been the "dominant cause" of the rise in temperatures since the 1950s.

The IPCC report says that many of the changes we have seen since the 1950s are unprecedented ‘over decades to millennia’. Temperatures have risen by about 0.8 °C since pre-industrial times, Arctic sea ice extent has declined by 4% per decade since records began in 1979 and sea levels have been rising by about 3mm a year since the early 1990s.

Each of the last three decades has been successively warmer at the Earth’s surface than any preceding decade since 1850. In the Northern Hemisphere, 1983–2012 is ‘likely’ to have been the warmest 30-year period of the last 1400 years.

Read the NFU's response here

The Met Office’s Prof Stephen Belcher said: “Well established physics tell us that if we increase concentrations of greenhouse gases in the atmosphere, then global temperatures will rise. The question is about how much warming will occur, where it will warm fastest and what the implications are. That is what this latest report seeks to answer.”

For the UK, the report projects a decline in the Gulf Stream effect which keeps our climate mild.

However, relative to elsewhere, the reduction in warming here would not be enough to counter the inexorable rise in temperature as a result of increasing greenhouses gases.

The new report shows that even under a scenario for the future with extensive measures to mitigate global CO2 emissions, the UK is still projected to warm over the course of the century.

Limiting climate change would require substantial and sustained reductions in emissions of carbon dioxide (CO2) and other greenhouse gases.

  • Posted by: Charles TrollopePosted on: 02/10/2013 19:13:10

    Comment: Scientists seem to lack any real knowledge of climate history. We are still climbing out of the little ice age.
    Temperatures in the UK were higher 800 years ago. Ice cover was less in the Arctic and agriculture was carried on at a higher altitude than today.
  • Posted by: DavidPosted on: 16/10/2013 20:48:32

    Comment: I totally agree with Charles Trollope. I would add that if there were to be an increase in temperature of another degree or so it would likely be of benefit to food production in the UK and probably the world. The increase of CO2 is already demonstrably a benefit. Any attempt by the UK to alter the climate will be as successful as King Canute was in holding back the rising tide of the sea, but at least that did not destroy the economy of the UK in the process.
  • Posted by: Andy BPosted on: 13/11/2013 17:55:52

    Comment: I agree with the posts of Charles and David I would also like to add that there is no proof of the oceans warming either, mainly they have only been measuring sea temps with Argo buoys for about 10 years not long enough to gain meaningful data
  • Posted by: George RidgePosted on: 15/11/2013 10:04:14

    Comment: These smart alecs appear to know better than real scientists. Arctic ice in fact will be gone entirely in the summer next year, so that this vast North Polar ocean will absorb instead to reflecting 90% of the sun's energy 24 hours per day, melting the glacial ice and raising sea levels so that London may well be flooded in ten years. Humanity's present situation is dire and few see the calamities around the corner. George Ridge

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