Observations Oceanic Climate Change and Sea Level - Library Open Repository
LIBRARY OPEN REPOSITORY
Observations: Oceanic Climate Change and Sea Level
Abstract
The oceans are warming. Over the period 1961 to 2003, global ocean temperature has risen by 0.10°C from the surface to a depth of 700 m. Consistent with the Third Assessment Report (TAR), global ocean heat content (0– 3,000 m) has increased during the same period, equivalent to absorbing energy at a rate of 0.21 ± 0.04 W m–2 globally averaged over the Earth’s surface. Two-thirds of this energy is absorbed between the surface and a depth of 700 m. Global ocean heat content observations show considerable interannual and inter-decadal variability superimposed on the longer-term trend. Relative to 1961 to 2003, the period 1993 to 2003 has high rates of warming but since 2003 there has been some cooling.
http://www.epa-pictaural.com/ctr/m/cc/transcript/stocker.pdf
Climate Change 2013: The Physical Science Basis
And if you now take this physical based look on global change, an energy
based look, you could argue the most fundamental way how to look at climate
change, this change is very obvious. The ocean is recording and storing that
information for us, the ocean water can, due to its heat capacity, take up a lot
of heat, and that can be measured very precisely, looking at temperature.
And isn’t it paradoxical? We are always fixated on measuring the
temperatures at the surface of the earth, admittedly an important parameter.
But in terms of energy it’s simply not relevant as you see in this graph. The
accumulation of energy in the climate system amounts to 70m twh over the
past 40 years. And this is a huge number, and I will just give you one other
number. It’s 500 times more than the world’s energy consumption in one
year. This accumulation is caused by the increase of greenhouse gas
concentrations in the atmosphere.
And here I show a figure that has been measured at our institute, asking
Antarctic ice cores as to the concentration of carbon dioxide over the past
800,000 years. This is a record that you see demonstrates that carbon
dioxide naturally varies in the climate system. This is not a constant quantity.
Over the past 800,000 years it has varied within very clear bounds. But in the
past 250 years we have gone out of these bounds. The concentration in the
year 2013 was actually 30% higher than any concentration that the climate
system has experienced in the past 800,000 years.
And in fact we can make that other headline statement that says that “These
levels of carbon dioxide have been unprecedented in that time period.” Now
the reason why this increase has happened is the burning of fossil fuel by
man, plus deforestation and to a minor extent the production of cement.
Now Dr., you make a lot of flap yap claims, yet provide no backup for any of them. How about backing your claims with credible sources? Watts, obese junkies on the AM radio, and fake British Lords are not credible sources.