Forecasting Net

Look into the future


Global warming-CO2 concentration level forecast

Posted by Forecasting Net on March 21, 2011 at 5:40 PM

The increased CO2 concentration level due to human activity contribute to global warming with significant repercussions to our planet. At 2008, the CO2 level was 385.34* ppm (parts per million). According to recent research**, if we reach the 450 ppm limit, this will result in an increase of the global temperature by more than 2°C (3.6°F) with catastrophic repercussions for the environment. This is the limit that usually most developed countries take into account when drawing their environmental policies.


Well, the interesting question is if this is an actual threat or if the 450 ppm limit is unreachable in the following decades, based on the existing historical growth patterns of CO2 concentration.


In order to find out, I used the Forecasting Tool application to analyze the global CO2 concentration levels from 1900 up to 2008*. As an initial displacement, I used the year 1899 CO2 concentration from the same data set. The forecast unveils a two century growth process that is currently half way to completion leading to 17% higher CO2 levels in the atmosphere, by the year 2050:




According to this forecast, the 450 ppm limit will be reached, by 2048, posing a serious and tangible threat to our environment that needs to be addressed from now if we want to be effective.


You can download the Global warming-CO2 level case study here.


*Source of actual data (CO2 concentration-parts per million):

EarthTrends ( Searchable Database Results

Provided by the World Resources Institute (

Data downloaded 8 Mar 2011

Data before 1958: Neftel, Friedli, Moore et al. 1994. Historical Carbon Dioxide Record from the Siple Station Ice Core (reported on-line by the Carbon Dioxide Information Analysis Center at Bern, Switzerland: University of Bern.

Data after 1958: Keeling, C.D., Whorf, T.P., and the Scripps Institute of Oceanography. 2005. Atmospheric CO2 Concentrations (ppmv) derived from in-situ air samples collected at Mauna Loa Observatory, Hawaii (reported on-line by the Carbon Dioxide Information Analysis Center at Mauna Loa: Scripps Institute of Oceanography.

Content licensed under a Creative Commons License 





This forecast, based on data up to 2008, follows accurately actual values for CO2 emissions for 2009-2012


Categories: Global warming, Forecasting

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Reply Elena
3:26 AM on March 23, 2011 
Interesting results. Could the tool be used to forecast top radiation emissions from Japan quake?
Reply Forecasting Net
7:43 PM on March 26, 2011 
In principle yes. However it would be rather "tricky" to find reliable data at the time that this situation unfolds. I will look around to see if I can get some info and come back...
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Ana then also trees reduce capture CO2
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