backtop


Print 89 comment(s) - last by JediJeb.. on Aug 11 at 5:57 PM


  (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



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

RE: Masher, I hope you've enjoyed your vacation
By Solandri on 8/3/2010 5:13:46 PM , Rating: 1
Jason Mick always struck me as pretty reasonable. It was just that the arguments he had with Michael Asher meant the parts they disagreed on got a lot more exposure. Jason was pro certain reasonable renewable technologies, while Michael seemed to be against any renewable (actually he was against renewables when better alternatives like nuclear were being ignored; I think he was ok with renewables in conjunction with nuclear). So most of their discussions highlighted Jason as the pro-renewable guy with Michael as the anti-renewable guy.

Without Asher around, the other side of Jason's stance on renewables (against the stupid ones) gets more publicity relative to his pro-renewable stance, so he comes across as being more reasonable than he used to. Tiffany OTOH seems to be pro-anything green without regard for its cost-effectiveness or if it even works.


By rett448 on 8/5/2010 4:13:51 PM , Rating: 2
The difference I have noticed is that now Jason includes view points from both sides of the argument in his articles. This allows the readers to form their own opinion on the subject matter. Tiffany however has only presented the opinion that if we dont reduce emissions to zero by 2100 the world as we know it will end. There is no discussion in the article about the benefits associated with higher temps or CO2 levels.


RE: Masher, I hope you've enjoyed your vacation
By glennforum on 8/3/2010 7:03:52 PM , Rating: 3
One small problem...you have to agree that CO2 is the problem. Most likely it isn't the problem.

Using the EPA standard for determining CO2 was a toxin H20 and a variety of other common elements would be considered toxins as well.

Basically if you were in a sealed room with only CO2 it would kill you...that was their test. Science has been hijacked by radical political activists that want to use any common element as the catalyst to control every aspect of your life up and including the day they decide you should die.

It is truly bizarre to me that they actually think this is going to end well. Arrogant fools who will get their day.


RE: Masher, I hope you've enjoyed your vacation
By CowKing on 8/3/2010 8:22:17 PM , Rating: 2
well, technically to much water CAN kill you in fact to much of anything can kill you even O2. Now, it might take a while but pure O2 over a period of time can kill you


By glennforum on 8/3/2010 8:33:44 PM , Rating: 2
O2 is lethal in 10 feet of water...lol.


By clovell on 8/4/2010 11:59:43 AM , Rating: 2
Tiffany seems to offer far less opinion in her articles than either Mick or Asher ever did. She lets the articles speak for themselves. That way, she doesn't have to get involved in the back & forth.

She also provides references upon request, reads the comments, responds to the one that aren't trolling or opinion-baiting, and generally keeps an even temper.

I don't always appreciate her stories as I'm sure she does, but I enjoy her writing style, and the fact that there's someone writing at DT who's challenging the readers here with more than just her opinion, which is what the Mick v. Asher saga felt like.


"A lot of people pay zero for the cellphone ... That's what it's worth." -- Apple Chief Operating Officer Timothy Cook














botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki