Find a point on a graph

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Jacob
Jacob on 23 Mar 2015
Answered: Star Strider on 24 Mar 2015
Hi,
I am extrapolating a line of best fit to find what increase in co2 will cause an increase in temperature of 2 degrees. Is there a scientific way I can work out what x value (co2 concentration) relates to the y value (temperature) on Matlab?
Thanks

Answers (2)

John D'Errico
John D'Errico on 23 Mar 2015
Edited: John D'Errico on 23 Mar 2015
You need to form a model, that FITS the curve. Choose something that makes sense in context. (Is that relation truly linear?) Fit the curve to the data. Then solve.

Star Strider
Star Strider on 24 Mar 2015
If it’s a linear relationship (as this article suggests), rearrange the typical ‘T=m*[CO2]+b’ relationship to get: ‘[CO2]=(T-b)/m’.
You need to do a DuckDuckGo search. When I did, I found a number of articles. In ‘Carbon Emissions Linked To Global Warming In Simple Linear Relationship’, they state: ‘These findings mean that we can now say: if you emit that tonne of carbon dioxide, it will lead to 0.0000000000015 degrees of global temperature change.’
Global warming is real.

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