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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