Why global warming is taking a break

The average temperature on Earth has barely risen over the past 16 years. ETH researchers have now found out why. And they believe that global warming is likely to continue again soon.

Global warming is currently taking a break: whereas global temperatures rose drastically into the late 1990s, the global average temperature has risen only slightly since 1998 – surprising, considering scientific climate models predicted considerable warming due to rising greenhouse gas emissions. Climate sceptics used this apparent contradiction to question climate change per se – or at least the harm potential caused by greenhouse gases – as well as the validity of the climate models. Meanwhile, the majority of climate researchers continued to emphasise that the short-term ‘warming hiatus’ could largely be explained on the basis of current scientific understanding and did not contradict longer term warming.

Researchers have been looking into the possible causes of the warming hiatus over the past few years. For the first time, Reto Knutti, Professor of Climate Physics at ETH Zurich, has systematically examined all current hypotheses together with a colleague. In a study published in the latest issue of the journal Nature Geoscience, the researchers conclude that two important factors are equally responsible for the hiatus.

    • El Niño warmed the Earth
    • Longer solar cycles

Read more here Why global warming is taking a break.

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5 Responses to Why global warming is taking a break

  1. Naan Glozi says:

    I find this very hard to believe as its the opposite to everything else I have seen on this topic in the last 20 years. Why are the ice caps melting at an ever increasing rate? Why is he sea level still rising year on year? 53 out of 93 of the worlds highest ever recorded temperatures recorded in the wiki article http://en.m.wikipedia.org/wiki/List_of_weather_records have been recorded since 1998 when they say there has been little increase in world temperature. I think we will find a bad study has recently been done which all the press have jumped on. It would be interesting to see who did this recent study and who paid for it.

    • Deskarati says:

      The NASA-funded National Snow and Ice Data Centre (NSIDC) – stated on its website that in August 2013 the Arctic ice cover recovered by a record 1.38 million sq km (533,000 sq miles) – from its 2012 low.

      Ice Cap

  2. Naan Glozi says:

    Although the August 2013 sea ice measurement had recovered from the previous year it was still well below average because the 2012 was the lowest on record. Here is the actual extract from the NASA website;-
    “On August 17, sea ice extent was 1.03 million square kilometers (398,000 square miles) below the 1981 to 2010 long-term average and 1.42 million square kilometers (548,000 square miles) above that observed in 2012 on the same date.”

  3. Naan Glozi says:

    Here is an extract from wiki regarding sea level rise,
    “Between 1870 and 2004, global average sea levels rose a total of 195 mm (7.7 in), and 1.46 mm (0.057 in) per year. From 1950 to 2009, measurements show an average annual rise in sea level of 1.7 ± 0.3 mm per year, with satellite data showing a rise of 3.3 ± 0.4 mm per year from 1993 to 2009, The reason for recent increase is unclear, perhaps owing to decadal variation. It is unclear whether the increased rate reflects an increase in the underlying long-term trend.”
    The only two things that cause sea levels to rise is polar ice melting and thermal expansion. It’s difficult to see how we could be heading for a climate recovery.

  4. Deskarati says:

    It is definitely difficult to get your head around the different statistics regarding global warming. I think one thing that we can all (well almost all) agree on is that it is happening and will continue unless we do something about it. The effects are a different story.

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