GREENHOUSE GAS EMISSIONS

N2O increasing faster than expected

Nitrous oxide is a potent greenhouse gas for which global emission estimates, driven largely by fertilizer input, are highly uncertain. An inversion approach based on atmospheric measurements yields global increases more than twice as high as the IPCC default.

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Fig. 1: Comparison of linear and nonlinear response of N2O emission to applied N.

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Correspondence to David Makowski.

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Makowski, D. N2O increasing faster than expected. Nat. Clim. Chang. 9, 909–910 (2019). https://doi.org/10.1038/s41558-019-0642-2

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