[Para uma constante actualização dos dados visitar o link referido acima]
- "If we are to limit global warming caused by carbon dioxide emissions to less than 2°C, widely regarded as necessary to avoid dangerous climate change, we need to limit total cumulative emissions to less (possibly much less) than 1,000,000,000,000 ...tonnes of carbon.
- Combined emissions from fossil fuel use, cement manufacturing and land-use change over the 250 years since industrialization began add up to an estimated 532,457,694,193 ...tonnes of carbon.
- Extrapolating the average percent-per-year rate of increase over the most recent 20 years for which data are available, we predict the trillionth tonne will be emitted on Sat, 01 Apr 2045 19:03:57 GMT
- We would not release the trillionth tonne if emissions were to start falling immediately and indefinitely at 2.1398288032 ...percent per year.
- To have less than a one-in-four chance of the global warming caused by carbon dioxide exceeding 2°C, it has been estimated that we need to keep cumulative emissions below 750,000,000,000 ...tonnes of carbon.
- Repeating the calculation above, we predict that the 750-billionth tonne will be emitted on Wed, 23 Aug 2028 22:18:35 GMT
- We would not release the 750-billionth tonne if emissions were to start falling immediately and indefinitely at 4.5433769212 ...percent per year." Valores às 21H35 de sexta-feira, 13.11.09
Trillionthtonne.org | questions: "Questions.
* Why is the trillionth tonne of carbon important?
* Why limit warming to less than 2°C?
* Don't other things matter for climate as well?
* Why do we need to limit cumulative emissions of carbon dioxide?
* How does this link up with “Target-350”?
* Why does this matter in practice? * What can I do? * What should my government do?
* How do you come up with these numbers?"
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PS (15.11.09) Esqueci-me de referir que fui encaminhado para os links acima via David Hone - Climate Change Advisor for Shell » Blog Archive » One day in early 2045
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