2025-02-06 デラウェア大学
The U.S. Environmental Protection Agency estimates that just one cow can emit 154 to 264 pounds of methane gas into the atmosphere each year.
＜関連情報＞
- https://www.udel.edu/udaily/2025/february/methane-beef-cattle-climate-consumers-kelly-davidson/
- https://www.sciencedirect.com/science/article/abs/pii/S0306919224001799
低メタン牛肉に対する消費者の嗜好：購入前情報、店頭表示、価格上昇の影響 Consumer Preferences for Low-Methane Beef: The Impact of Pre-Purchase Information, Point-of-Purchase Labels, and Increasing Prices
Kelly A. Davidson, Brandon R. McFadden, Sarah Meyer, John C. Bernard
Food Policy Available online 26 November 2024
DOI:https://doi.org/10.1016/j.foodpol.2024.102768
Highlights
- The U.S. is committed to reducing methane emissions by 30% by 2030.
- Consumer preferences were explored for beef grown using methane-reducing feeds.
- Ground beef without methane-reducing feed was generally preferred, but not always.
- Of the methane-reducing feed additives considered, seaweed was the most preferred.
- Policies aiding seaweed additive adoption could help the U.S. reach climate goals.
Abstract
Cattle production is estimated to be the largest methane (CH4) emitter associated with consumer demand in the United States of America (U.S.). With a national commitment to reducing methane emissions by 30% before 2030, methane-reducing additives (MRAs) in livestock feed are being explored as a viable solution. This study investigated consumer preferences for low-methane ground beef produced using one of three MRAs with varying levels of methane mitigation: Aspagopsis taxiformis (seaweed), the organic compound 3-nitroxypropanol (3NOP), or a blend of essential oils (e.g. garlic extract and citrus). In a nationally representative survey, 3,009 respondents completed a labeled discrete choice experiment used to estimate preferences, WTP, and market shares for conventional and low-methane ground beef. Randomized groups were given pre-purchase information about methane emissions from beef production and point-of-purchase labels communicating the methane reduction levels for each MRA. Given the contemporaneous rise in beef prices, respondents were randomized between a low and high-price group to examine the sensitivity of results. While conventional ground beef was generally preferred, consumer WTP and average market shares for the seaweed MRA product (the MRA with the highest methane reduction potential) surpassed conventional beef for the group that received pre-purchase and point-of-purchase information. Information added more utility and was more effective in the low-price group. Government policies that incentivize the adoption of a seaweed MRA could aid in meeting climate goals.
