Showing results for: Climate change: Mitigation
Climate mitigation mitigation involves actions aimed at limiting the amount of greenhouse gases in the atmosphere. This may consist in reducing anthropogenic emissions or by increasing the capacity of carbon sinks. Food systems contribute some 20-30% of total global anthropogenic greenhouse gas emissions and their impacts will need to be addressed if substantial global climate change mitigation is to be achieved. In agriculture, management and breeding methods for mitigation of climate change are being developed for all regions. However, not only technological change, but also changes in demand (away from emission intensive foods such as meat and dairy), and in enabling socio-economic structures and the governance framework will influence the amount of GHGs emitted in the future. In the food system, there is scope to develop new practices which deliver multiple win-wins – for example, that function both as climate change adaptation and as mitigation strategies (e.g. climate resilient crops that also bind more carbon in the soil) or that deliver non environmental benefits – for example where shifts to lower environmental impact diets also improve nutritional wellbeing.
This report from UK charity Rewilding Britain argues that rewilding peatlands, heathland, native woodlands, saltmarshes, wetlands and coastal waters in the UK could sequester carbon and also produce other benefits such as flood mitigation, enhanced biodiversity and water quality improvement.
In this research note, the US-based Open Philanthropy Project discusses whether animal welfare might be helped or hindered by climate-focused reductions in meat consumption. For example, the note points out that meat types with a relatively low carbon footprint (e.g. chicken) are often from smaller animals (compared to, say, cows) and thus require more animals to be farmed and killed.
This modelling paper finds that strategies to mitigate climate change could put an additional 160 million people at risk of hunger by 2050, if they are not designed carefully. However, these trade-offs could be avoided at a cost of around 0.2% of GDP in 2050.
New Zealand has introduced a new bill that aims to bring emissions of long-lived greenhouse gases to net zero by 2050. A separate target has been set for methane emissions from agriculture, with planned cuts of 10% by 2030 and 24% to 47% by 2050.
The UK Parliament has endorsed a motion to declare a climate and environment emergency, in response to the 2019 Extinction Rebellion protests and calls from the Labour opposition. The motion, which is not legally binding, follows declarations of a climate emergency by the Welsh Government, Nicola Sturgeon, First Minister of Scotland, and several cities across the UK.
This report from the UK’s Committee on Climate Change sets out how the UK can reach net zero emissions by 2050 using existing technologies. It notes that current policies do not do enough to meet existing climate targets, and calls for “clear, stable and well-designed policies” to be introduced across the economy without delay. If replicated across the world, the plan would give a greater than 50% chance of limiting warming to 1.5°C.
This report from the UK think tank Green Alliance sets out how the UK could bring its land use emissions to net zero. The actions proposed include ecosystem restoration, planting new areas of woodland, capturing carbon in soils, and reducing demand for meat and dairy.
This report from the Animal Law and Policy Programme at Harvard Law School estimates the carbon sequestration potential of converting UK land currently used for animal agriculture into native forest. The remaining cropland is enough to provide more than the recommended calories and protein for all UK residents, according to the authors.
Schools strike climate activist Greta Thunberg, along with several scientists, authors and campaigners, has called for “natural climate solutions” to tackle climate change and biodiversity loss simultaneously.
This book by Mike Berners-Lee aims to provide a big-picture overview of how to solve the many environmental issues the world is facing now, including both systemic and personal paths of action. It is aimed at a wide audience including both policymakers and the general public. Chapter 2 is about food.
This paper models the impacts that the Paris Agreement on climate change would have on seafood production. It finds that three quarters of maritime countries would benefit from the Agreement’s implementation.
Climate mitigation policies rarely account for the time lags associated with land-based greenhouse gas mitigation policies such as reforestation, bioenergy with carbon capture and storage (BECCS) or reduction of agricultural emissions, argues this paper, making it unlikely that commitments under the Paris Agreement will be met.
This report outlines the outcomes of the 4 per 1000 Africa Symposium on Soils for Food Security and Climate, which discussed the links between soil health and climate in Africa.
This report from Food and Agriculture Organisation of the United Nations and the Global Dairy Platform shows the global dairy sector’s greenhouse gas emissions and outlines the measures the sector could take to contribute to climate change mitigation.
This paper uses economic models to calculate the extent to which both supply-side and demand-side measures could reduce non-CO2 greenhouse gas emissions from the agricultural sector, depending on carbon price.
This paper performs a cost-benefit analysis for various climate-smart agriculture practices on farms in Vietnam, Nicaragua and Uganda, including switching annual to perennial crops (e.g. coconut), crop rotations, using organic fertiliser and intercropping maize and beans.
So-called natural climate solutions in the United States (such as changing management of forests, grassland and agricultural land) could create annual emissions savings equivalent up to 21% of current US emissions according to this paper.