Fact #2

Fact: The CO2 level will go off the charts in less than 50 years.



Source #1:

http://www.news.com.au/story/0,23599,23590725-5009760,00.html



The website is actually a news website and there is not really a biblography per say because it is only an article that was written from information that someone got and usually they do not cite it at the end of the article. I did see many quotations and where the person got the information from and it is valid. The numbers about the CO2 leavel was taken from the US National Oceanic and Atmospheric Administration and most of the information came from correspondents from Washington. This is a very credile source because their refrences are credible and it is valid news website. The source says that the fact is true and i do believe it becuase there are many refrences to the numbers that they researched on. The amount of methane increased was by 0.5 per cent, or 27 million tonnes and the US NOAA used these numbers to estimate the future numbers and it does correspond to one another. It mentioned that the "greenhouse gas index, based on data from 60 sites around the world, showed that that last year's carbon dioxide increase added 2.4 molecules to every million molecules of air, a measurement known as parts per million, or ppm." and that was information accounted 20 years ago. Looking at the predictions that made then, it is pretty darn close the actual amount right now. It also said how the intake of CO2 has been increasing the years and if their calculations before was right, accroding the calculation and the amount of CO2 that we are using, according to Mr. Tans,who studies greenhouse gases at the laboratory, the co2 will go off charts in less than 50 years.



Source #2:

http://www.esrl.noaa.gov/gmd/ccgg/trends/co2_data_mlo.html

The source is Earth System Resreach Library and at the end of the article there are sources and acknowledgments from which the information was taken or concluded from. This is a very credible source because is a the earth system research library and that is an actual laboratory that reasearched souly on global monitaring which includes the global warming. The source says that fact is true and i believe it because it shows a graph and that pretty much shows everything about CO2 level. It also shows the predictions for the next years and past years' predictions and how close the predcitions and the real value are very close. And i really like the fact that you can visually see the prediction and real numbers which gives you better idea of how the CO2 level going to go off the charts. It also has a pragraph in the bottom explaining the graph and its meaning.

Source #3:

http://www.earthsky.org/radioshows/53014/were-in-a-co2-danger-zone-says-scientist

This article doesnot exactly have the sources at the end of documents like that a normal article because it is an article about a interview that was taken by the Earth and Sky Radios. But this is a credile source because this website shows articles and is dedicated to science realting to Earth thus called earth sky. This source also says that the fact is true and i believe it because it shows how in the interview the sceintist talks about the CO2 and jsut like the other websites, it shows how the numbers correspond with one another when it was predicted and the actual was calculated. He also talked about how the sea level is also rising and that is relatedto the number pattern that was seen in the CO2 level.

I do believe this fact because all of the websites gave evidence that CO2 level will go off the charts and espeacially the graph really explained what was going on and i knew i could believe the website because it was credible.