Rabbits stick to their Carbon Budgets: Difference between revisions
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= Take the Jump = | = Take the Jump = | ||
* The City of Melbourne is part of a grouping of 100 cities from around the world ('''C40 Cities Climate Leadership Group''') | * The City of Melbourne is part of a grouping of 100 cities from around the world ('''C40 Cities Climate Leadership Group''') have committed to reducing GHG emissions consistent with a 1.5degC World (67% confidence) [https://takethejump.org/the-science]. | ||
* Emission targets have been informed by a report titled '''The Future of Urban Consumption in a 1.5°C World''' [https://www.arup.com/perspectives/publications/research/section/the-future-of-urban-consumption-in-a-1-5c-world] | * Emission targets have been informed by a report titled '''The Future of Urban Consumption in a 1.5°C World''' [https://www.arup.com/perspectives/publications/research/section/the-future-of-urban-consumption-in-a-1-5c-world] | ||
* The report models the effects of several interventions to reduce GHG emissions: | * The report models the effects of several interventions to reduce GHG emissions: | ||
Revision as of 09:40, 1 January 2023
Take the Jump
- The City of Melbourne is part of a grouping of 100 cities from around the world (C40 Cities Climate Leadership Group) have committed to reducing GHG emissions consistent with a 1.5degC World (67% confidence) [1].
- Emission targets have been informed by a report titled The Future of Urban Consumption in a 1.5°C World [2]
- The report models the effects of several interventions to reduce GHG emissions:
- Reducing the number of new clothing items bought each year
- A shift to a plant based diet
- Keep electrical products for 7 years
- No personal cars for travel
- Holiday local or travel short haul once every 3 years
- Advocate for systemic change
C40 Cities and Climate Change Pledges
- C40 Cities (which include Melbourne and Sydney) have set the following targets
- 50% reduction in emissions by 2030 (based on 2010 emission levels)
- net-zero emissions by 2050
Climate math: What a 1.5-degree pathway would take
- These targets are based on good science [3].
- A 50-55% reduction on CO2 emissions by 2030 based on 2010 levels
- Staying within a 570 GtCO2 cumulative carbon budget. Budget of 570 GtCO2 emissions from 2018 onward offers a 66% chance of limiting global warming to 1.5°C, when assessing historical temperature increases from a blend of air and sea-surface temperatures.
Limitations
- There limitations associated with these targets.
- During the period of steep mitigation of non-CO2 greenhouse gases are not addressed
- The achievement of net zero emissions to 2050 relies on reforestation and carbon-removal technologies such as bioenergy with carbon capture and storage (BECCS) and direct air carbon capture and storage (DACCS) - so-called Negative emissions. Some of these technologies are in their infancy and unproven at the scale required in the model.
