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IPCC 5th Report Confirms we are Getting Hotter - Faster

 

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IPCC confirms we are getting hotter - faster (read more....)

The IPCC (UN’s Intergovernmental Panel on Climate Change) released their 5th report in Stockholm today, September 27th 2013.

Basically the report found stronger evidence that Climate Change IS man made.

Their key findings include:

  •   Average surface temperatures up 0.85 degrees since 1880
  •   Extremely likely – 95 per cent certainty – humans the dominant cause of Global Warming
  • Sea levels to rise 26-81 centimetres by 2100
  • World temperatures to rise 2–4.8 degrees – warming by 2100

The remainder of the report's findings were mainly:

It is more certain than ever that human civilisation is the main cause of global warming, putting the world on track for dangerous temperature rises, the latest major UN assessment of climate change science has found.

If emissions remain high, by 2100 temperatures are likely to rise by more than 2 degrees - and up to 4.8 degrees - breaching a threshold agreed by governments as limiting the worst impacts of climate change.

Heatwaves will be more frequent and last longer, the report found. Most wet regions will get more rainfall, and most dry regions less.

Glaciers and ice sheets will continue to shrink, and the sea level will rise more quickly

On Friday in Stockholm the UN’s Intergovernmental Panel on Climate Change released a summary of its fifth major assessment of climate science after a week of debate, and years of work.


“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 IPCC working group that compiled the report.


These findings were based on multiple lines of independent evidence, he said, much of it new since the IPCC’s previous report in 2007.


Co-chair Thomas Stocker said “substantial and sustained” reductions of greenhouse gas emissions would be necessary to prevent further warming and climate change.


The report found that:

  • Each of the last three decades has been warmer than any preceding decade since 1850, and the last 30 years have been the warmest since 600 AD. Combined land and ocean temperatures rose on average by 0.85 degrees since 1880.
  • From 1901 to 2010, the sea level rose by 19cm – more quickly than the average for the last 2000 years. It is very likely to rise even more quickly during the 21st century.
  • Greenhouse gases have reached levels unseen in at least 800,000 years, from fossil fuel emissions and land use. A third of the extra carbon dioxide has been absorbed by the oceans, making them more acidic.
  • It is very likely that Arctic sea cover will continue to shrink and thin, and spring snow cover will continue to decrease through the 21st century.
  • It is more likely than not that there will be more intense tropical cyclones.

Evidence for human influence in climate change has grown in the last five years, the report found.

 

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Cheers - Allan Barker

September 27th 2013

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