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On September 27 2013 the IPCC released the WG1 report of the IPCC AR5 assessment.
Ocean warming dominates the increase in energy stored in the climate system, accounting for more than 90% of the energy accumulated between 1971 and 2010 (high confidence). It is virtually certain that the upper ocean (0−700 m) warmed from 1971 to 2010 (see Figure SPM.3), and it likely warmed between the 1870s and 1971. IPCC AR5 Summary for policymakers http://www.climatechange2013.org/imag...
IPCC WGI AR5
Climate Change 2013: The Physical Science Basis http://www.climatechange2013.org/
The new IPCC climate report http://www.realclimate.org/index.php/...
Summary:
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A concise overview of Working Group I's findings was published as the Summary for Policymakers on 27 September 2013. The level of confidence in each finding was rated on a confidence scale, qualitatively from very low to very high and, where possible, quantitatively from exceptionally unlikely to virtually certain (determined based on statistical analysis and expert judgement).
The principal findings were:
Warming of the atmosphere and ocean system, and associated impacts such as sea level change have certainly occurred since 1950. Many of these metrics have changed at rates unprecedented in the historical record.
It is likely that 1983—2013 was the warmest 30-year period for 1400 years.
It is virtually certain the upper ocean warmed from 1971 to 2010.
It is with high confidence that Ocean warming accounts for 90% of the energy accumulation between 1971 and 2010.
It can be said with high confidence that the Greenland and Antarctic ice sheets have been losing mass in the last two decades.
Mean 1901—2010 sea level rise was stated as 19 ± 2 cm.
Concentration of greenhouse gases in the atmosphere have increased to levels unprecedented on earth in 800,000 years. The rate of increase over the 20th century is the greatest known for 22,000 years (very high confidence).
Total radiative forcing of the earth system, relative to 1750, is positive and the most significant driver is the increase in CO2's atmospheric concentration.
It is extremely likely human influence has been the dominant cause of observed warming since 1950.
Continued emissions will lead to further warming and changes in the climate system.
https://en.wikipedia.org/wiki/IPCC_Fi...
