Der var meget større mængder ‘drivhusgasser’ før den industrielle revolution end hidtil antaget

Warming effect of greenhouse gases ‘has been overestimated’: Ice samples suggest pre-industrial air pollution was WORSE than we thought and future temperatures will rise more slowly

  • Experts analysed soot levels in 14 ice cores from Antarctica dating back to 1750
  • They found that pre-industrial soot levels were four times higher than expected
  • Soot has an atmospheric cooling effect, in opposition to greenhouse gases
  • Climate models must account for both to understand past temperature changes 
  • That soot levels were higher that thought means that modelling is likely off
  • While the planet is still warming, it is likely not doing so slower than we thought

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