Global warming is likely to increase soil organic carbon decomposition, and thus CO2 release to the atmosphere, creating a positive feedback cycle. Inclusion of realistic estimates of soil black carbon in a climate model results in a decrease in soil CO2 emission in Australia by up to 24.4% following a 3 ∘C warming over 100 years, suggesting that black carbon reduces the strength of this feedback.
- Johannes Lehmann
- Jan Skjemstad
- Evelyn Krull