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Jones, Malcolm; Chorley, Hannah; Owen, Flynn; Hilder, Tamsyn; Trowland, Holly; Bracewell, Paul
Environmental modelling & software : with environment data news, September 2023, 2023-09-00, Letnik: 167Journal Article
As efforts to mitigate the effects of climate change grow, reliable and thorough reporting of greenhouse gas emissions are essential for measuring progress towards international and domestic emissions reductions targets. New Zealand’s national emissions inventories are currently reported between 15 to 27 months out-of-date. We present a machine learning approach to nowcast (dynamically estimate) national greenhouse gas emissions in New Zealand in advance of the national emissions inventory’s release, with just a two month latency due to current data availability. Key findings include an estimated 0.2% decrease in national gross emissions since 2020 (as at July 2022). Our study highlights the predictive power of a dynamic view of emissions intensive activities. This methodology is a proof of concept that a machine learning approach can make sub-annual estimates of national greenhouse gas emissions by sector with a relatively low error that could be of value for policy makers. Display omitted •Daily and low latency predictions of the New Zealand Greenhouse Gas Inventory.•Cross validation ensures accuracy, stability, low over-fitting and explainability.•Daily predictions contrast emissions during lockdowns with global financial crisis.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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