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Our emissions reduction targets are informed by a carbon budget A tolerable quantity of greenhouse gas emissions that is emitted in total over a specified time. The budget needs to be in line with what is scientifically required to keep global warming within our target and thus climate change 'tolerable'. (CO2e) that sets out the total cumulative greenhouse gas emissions Gases emitted to the atmosphere which contribute to the greenhouse gas effect, in which more than the normal amount of atmospheric heat is retained in the atmosphere. These emissions include water vapour, carbon dioxide, nitrous oxide, methane, ozone, halocarbons and other chlorine and bromine-containing substances. that Auckland can produce to play its part in keeping global emissions within the 1.5°C temperature rise threshold.
Auckland’s carbon budget is 164 MtCO₂e from 2017-2050 – equivalent to a budget 14 times the size of Auckland’s annual emissions in 2016.
Our carbon budget has been calculated by C40 Cities in line with Auckland delivering a fair share contribution (PDF 4.6MB) to achieving the objectives of the Paris Agreement.
The modelled decarbonisation pathway delays the date at which the carbon budget is exceeded until around 2038 and flattens the curve, significantly slowing the rate at which emissions are added to our cumulative total.
The modelled decarbonisation pathway still exceeds our carbon budget, emphasising the need for additional strategies and new technologies, as well as carbon sequestration The net removal, by natural or artificial processes, of carbon from the atmosphere, and storage in carbon sinks - plants, oceans, soils., to address remaining emissions and achieve net zero emissions The total of a country’s/city's emissions across all sources, minus offsets from land use, land-use change and forestry. by 2050.
Auckland’s cumulative gross emissions The total discharges of greenhouse gases from human activity into the atmosphere and is usually expressed as CO2 equivalence per year. projections and carbon budget:
