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  (Source: All American Patriots)
Goal of study is to constrain temperature change to 2 degrees Fahrenheit

Researchers at the Max Planck Institute for Meteorology in Hamburg have calculated the amount of carbon dioxide humans can safely emit before effecting the heating of the Earth.

Scientist Erich Roeckner and his team have created a model that determines the highest volumes of carbon dioxide that humans are allowed to emit in order to ensure that Earth does not heat up by more than two degrees Celsius, which is the gate to climate warming. They've used the methodology proposed by the Intergovernmental Panel on Climate Change (IPCC) in order to reconstruct historical emission pathways "on the basis of already-calculated carbon dioxide concentrations." 

In order for this to occur, carbon cycle data, such as the volume of carbon dioxide absorbed by forests and oceans, is added to the model. The model then simulates the evolution of carbon dioxide emissions in order to understand what the future holds and how it should be changed to prevent warming. 

The model is based on a low-resolution spatial grid with 400 kilometer grid spacing. With this kind of model, the land surface, ocean, sea ice, atmosphere and terrestrial and marine carbon cycle are all included in the study.

According to the model, carbon dioxide caused by fossil fuels must be reduced to almost zero by the end of the century to achieve long-term goals of carbon concentration stabilization in the atmosphere. The model calculated that, since the beginning of the Industrial Revolution, fossil carbon dioxide has increased by 35 percent.

Other figures the model has calculated is that carbon emissions will increase from seven billion tonnes in 2000 to 10 billion tonnes in 2015. Then, emissions will have to be decreased by 56 percent by 2050, and reach zero by the end of the century for long-term stabilization to be achieved. But even if these goals are met, global warming would only stay below two degrees Celsius until 2100, and further measures will need to be taken to control warming. 

Roeckner noted that it will take centuries to stabilize the global climate system, and that their data is being studied and evaluated at other climate centers in Europe. 

"As soon as all of the results are available, we can evaluate the spread between the models," said Roeckner. "The more significant the data we have, the more accurate our forecast will be."

In other news, a University of Georgia marine chemist, Wei-Jun Cai, just disproved that melting ice at the poles will allow open water to catch carbon dioxide from the the air. According to a survey of waters in the Canada Basin, the potential carbon dioxide "sink" would be a very short period of time with minor effects due to the amount of rising emissions. 

The study was published in the July 2010 edition of Science

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RE: Cute
By JonnyDough on 8/4/2010 11:15:04 PM , Rating: 2
On second thought, I probably should just addressed your first line.

Well unless some form of carbon is dropping on the planet from outer space, then the composition of the planet will remain basically the same forever.

It is. Sunlight/Radiant energy. Why do you think rotted bio matter (coal, oil) are used for power and heat? They have captured the essence of the sun. It isn't like bio-matter magically trapped gasses found naturally in dirt. That power came from the sun. Heat and light that is slowly leaking out of the sun in a fiery inferno. Bacteria, water, compression, time...turns those fibery plants into dirty liquid or rock. Coal or oil. That's why coal and oil aren't clean clear energy. They contain rock particles. Its our job when we use them as sources of power to capture the dirt/rock particles before they go flying about in our atmosphere causing all sorts of breathing problems and potentially trapping more radiant light/heat from the sun on the earth's surface.

RE: Cute
By JediJeb on 8/11/2010 5:57:51 PM , Rating: 2
For there to be more carbon today because of sunlight hitting the earth then the law of conservation of mass would need to be broken. In that basic fundamental law of physics matter can neither be created or destroyed, with the exception of a nuclear fission or fusion reaction. The amount of carbon on the earth today will always be the same unless a carbon bearing rock from space lands on earth. A very tiny amount may come from radioactive decay but would be so little that it would barely be measurable, let alone enough to be seen as a tree.

I am so discouraged these days that even the simple points of science are not being taught in our schools.

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