Knowledge for better food systems

Showing results for: GHG emission trends

23 June 2020

This report from the international non-profit Institute for Agriculture and Trade Policy examines the climate impacts of large dairy corporations. It finds that greenhouse gas emissions from the 13 largest dairy companies have increased by 11% over the last two years, alongside an 8% increase in milk production, and that none of these corporations has published plans to cut total emissions in their dairy supply chains. 

17 June 2020

The Food Systems Dashboard has been developed by Johns Hopkins University and The Global Alliance for Improved Nutrition. It brings together data on over 150 food system indicators, such as yields, climate, trade, dietary guidelines, non-communicable diseases and income. Users can compare regions and visualise indicators on a map.

20 January 2020

This progress report to the Scottish Parliament from the UK’s Committee on Climate Change shows that, while Scotland’s overall greenhouse gas emissions fell by 3% in 2017, the Scottish Parliament's 2030 target to reduce emissions by 75% will be extremely challenging to meet. 

18 September 2019

Michelle Cain, Myles Allen and John Lynch of the University of Oxford have published a plain-language briefing note that explains how different ways of measuring the climate impact of methane (GWP100 versus GWP*) affect definitions of net zero emissions targets.

16 July 2019

This report from the UK’s Committee on Climate Change (CCC) sets out the UK’s current progress towards its climate goals. It finds that, since June 2018, the UK government has only delivered 1 out of 25 essential policies needed to cut emissions and only 7 out of 24 progress indicators are on track.

17 June 2019

Methane emissions from ammonia fertiliser manufacturing plants (which use natural gas as a feedstock and energy source) in the United States are around one hundred times higher than currently reported levels, according to this study. Researchers used a Google Street View car equipped with methane analysers to take measurements downwind of six ammonia fertiliser plants (there are only 23 such plants in the US).

8 May 2019

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.

29 April 2019

Decoupling of carbon emissions from economic growth is unlikely to happen quickly enough to meet the Paris climate targets of limiting warming to 1.5°C or 2°C, according to this paper. Furthermore, both historical trends and model-based projections suggest there is no evidence that resource use and economic growth can be absolutely decoupled at the global scale in the context of continued economic growth.

26 February 2019

This paper, by John Lynch of the University of Oxford’s LEAP project, finds that carbon footprint studies of beef cattle typically do not report separate values for emissions of different greenhouse gases such as methane and nitrous oxide. Instead, studies generally report only an aggregated figure in the form of the 100-year Global Warming Potential (GWP100) as CO2-equivalent.

11 February 2019

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.

22 January 2019

The ongoing government shutdown in the United States means that several databases and websites with agricultural and climate data are currently unavailable. Gro Intelligence is offering free subscriptions to its web app during the shutdown. The web app provides global food and agriculture data.

3 December 2018

The US Global Change Research Programme has published the second volume of its Fourth National Climate Assessment, which examines the human welfare, societal, and environmental impacts of climate change and variability across many sectors, including agriculture.

29 October 2018

A recording of the launch of the report “Negative Emissions Technologies and Reliable Sequestration: A Research Agenda” can be viewed here, hosted by the National Academies of Sciences, Engineering, and Medicine. The video is around one hour long and includes an overview of the report’s findings and a question-and-answer session.

12 September 2018

New Zealand’s Parliamentary Commissioner for the Environment has released a report exploring how much and over what timescale the climate is affected by methane emissions from livestock. It focused on two questions. First,if methane emissions from livestock were held at current levels or followed business-as-usual trajectories, what would their contribution to future warming be? Second, what reduction in methane emissions from livestock would be needed so that they cause no additional contribution to warming?

24 July 2018

A new report from the Institute for Agriculture and Trade Policy (IATP, a US non-profit research and advocacy organisation) and Genetic Resources Action International (GRAIN, a non-profit headquartered in Spain) finds that the five largest meat and dairy companies together account for more greenhouse gas emissions than ExxonMobil, Shell or BP. The top 20 meat and dairy companies have greater emissions than some nations, including the UK and Australia. The report argues that by 2050, the meat and dairy industry could account for 80% of the planet’s greenhouse gas budget if the industry grows as projected.

17 July 2018

The UK’s Committee on Climate Change has released its 2018 Progress Report to Parliament on Reducing UK Emissions. Chapter 6 focuses on agriculture and land use, land-use change and forestry. The report finds the UK agricultural emissions were unchanged between 2008 and 2016. In 2017, half of farmers did not think it was important to consider emissions when making decisions about farming practices. The forestry sector’s ability to sequester carbon has levelled off due to the average age of trees increasing relative to the past. Chapter 6 makes only passing reference to demand-side measures for agricultural emissions reductions (see Figure 6.9).

10 July 2018

A paper proposes a new method for evaluating the climate impact of short-lived greenhouse gases (GHGs) such as methane. Different GHGs are currently assessed on the basis of global warming potential (GWP), calculated as carbon dioxide equivalent, usually over a 100 year time horizon. The paper authors say that this misrepresents the impact of short-lived GHGs, because they have stronger climate impacts shortly after being released and lower impacts after being in the atmosphere for some time.