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Month: January 2022

Is beyond meat beyond pollution?

As discussed previously, the production of food, especially meat is extremely pollutive. The rearing of livestock for meat requires a large amount of feed, water and land while emitting a large amount of carbon dioxide and methane (both greenhouse gases) (Michel, Hartmann & Siegrist, 2021). Worse of all, the global demand for meat is projected to rise by 73% by 2050 (European Environment Agency, 2020), worsening the pollution problem.

In recent years, there has been increasing attention towards reducing emissions and land impact of the meat industry. One such solution is plant-based meat, a more sustainable alternative to meat from livestock. For instance, the Beyond Meat patty, made primarily with pea protein, canola oil and coconut oil is designed to look, cook and taste like ground beef (Heller & Keoleian, 2018).

Are these plant-based meat really less pollutive?

Based on existing studies, the answer appears to be “Yes”. A study found that replacing beef with equally nutritious plant-based products would use only require 10% of the land and produce only 4% of the greenhouse gas emission (Kusch & Fiebelkorn, 2019). Focusing Beyond Meat’s patty, the life cycle analysis found that the meat alternative produces 90% lesser greenhouse gas, requires 99.5% lesser water and 93% lesser land use as compact to conventional beef (Heller & Keoleian, 2018).

Figure 1: Comparision between Beyond Burger and Beef Patty (Heller & Keoleian, 2018)

Based on these results, plant-based meats do have huge potential to drastically solve the pollution problem of meat production. However, the challenge would be to get consumers to switch from traditional meat to plant-based meats. Plant-based meat faces multiple challenges towards adoption – (1) Price, (2) Consumer awareness of the product and (3) Consumer perception towards the “fake” meat. Hopefully, with the increasing adoption of plant-based meat in mainstream restaurants, there will be increased consumer adoption.

Would you be willing to give up your beef patty for a plant-based patty to save the environment?

 

References:

European Environment Agency (2020). Artificial meat and the environment. Retrieved Jan 30, 2022 from https://www.eea.europa.eu/publications/artificial-meat-and-the-environment/at_download/file

Heller, M. C. & Keoleian, G. A. (2018). Beyond Meat’s Beyond Burger Life Cycle Assessment: A detailed comparison between a plant based and an animal-based protein source. Retrieved on Jan 30, 2022 from http://css.umich.edu/sites/default/files/publication/CSS18-10.pdf

Kusch, S., & Fiebelkorn, F. (2019). Environmental impact judgments of meat, vegetarian, and insect burgers: Unifying the negative footprint illusion and quantity insensitivity. Food Quality and Preference, 78, 103731. https://doi.org/10.1016/j.foodqual.2019.103731

Michel, F., Hartmann, C., & Siegrist, M. (2021). Consumers’ associations, perceptions and acceptance of meat and plant-based meat alternatives. Food Quality and Preference, 87, 104063. doi:10.1016/j.foodqual.2020.104063

Featured Image from https://pulsenews.co.kr/view.php?year=2019&no=213221

 

How does Air pollution affect agriculture?

Agriculture is well known to produce a variety of air pollutants, ranging from Ammonia, Greenhouse Gases to even Particulate Matter (PM). According to the FAO, ammonia emissions from fertilized land and animal waste is responsible for 75% of global emissions (Sun, Dai & Yu, 2017) However, did you know that Air pollutants are also found to decrease agriculture productivity?

In today’s blog post, we explore “Air pollution, food production and food security: A review from the perspective of food system” by  Sun, Dai & Yu (2017).  In this journal article, the authors reviewed a wealth of past studies that describe the various ways air pollution affects agriculture.

First off, the study found that intense air pollution has adverse effects on plant growth, obstructing photosynthesis and changing plant structures. For instance, Nitrogen Oxides and Sulfur dioxide in the atmosphere can result in acid rain, harming the roots of plants and killing soil microbial communities. The presence of heavy metal contamination in the soil results in accumulation in plants, significantly reducing plant growth and crop outputs.

Secondly, air pollution has a large impact on labour, reducing labour productivity and health. Farmers are found to have a higher risk of respiratory diseases and chronic diseases due to long term exposure to pollution like engine exhausts, toxic aerosols and organic solvents. This reduces farmers productivity and working time, affecting agricultural production.

Thirdly, air pollution causes agricultural machinery to degrade. Acid rain due to agricultural pollution has been found to corrode certain types of metals and accelerate the depreciation of farm machinery.

Given the impact of Air pollution on Agriculture, such research should receive more attention and be shared with farmers. Perhaps, knowing that pollution may affect a farmer’s profits may incentivise farmers to reduce their environmental impacts and pollution. What are your thoughts on this matter?

References

Sun, F., DAI, Y., & Yu, X. (2017). Air pollution, food production and food security: A review from the perspective of food system. Journal of Integrative Agriculture, 16(12), 2945-2962. https://doi.org/10.1016/S2095-3119(17)61814-8

Featured image from https://unsplash.com/photos/LVXxZRyBpP4

Poop problem from Industrial Hog Farming

Hi Everyone! In today’s post, I would be sharing a short discussion around a Hog farming pollution problem in North Carolina. This post was inspired by a youtube video created by Vox. Do check out the video below

The video described a massive problem with industrial Hog farming, where a large number of animals are kept in small places producing large amounts of manure. The manure is then sprayed into a nearby crop field as a waste disposal strategy. However, this releases a large amount of Methane, Carbon dioxide, Ammonia and Hydrogen Sufied into the air. This was found to increase rates of Asthma, Respiratory diseases, headaches and even premature death in the area.

Furthermore, when manure enters groundwater and water bodies, this releases nitrates, phosphorus and Fecal bacteria that cause illnesses in people and algae blooms.

Currently, one of the potential solutions to this poop problem is to process and treat the waste before using it for irrigation. See the diagram below provided in the video. However, this solution is not economically viable and has not been implemented.

This incident illustrates the complexity of solving pollution from food production. As long as consumers are price-sensitive, producers have little incentive to reduce the intensity of farming and properly manage waste from food production. Stay tune for more blog posts on food production.

References:

Vox (2022). Hog farming has a massive poop problem. Retrieved on 20th January, 2022 from https://www.youtube.com/watch?v=WsUNylsiDH8

How pollutive is food production?

Hi Everyone! Welcome back to Pollutive Food, where I share updates and discussions around the pollution arising from food production. Since this is one of the first posts, I would be sharing some statistics and existing research on the topic.

From beef steaks, lobster rolls and even white rice, there is an entire trail of environmental pollution behind it’s production and eventual distribution. Food production which involves the use of fertilisers, management of animal manure and even electricity, produces a vast amount of pollutants.

Past studies have found that the Agriculture sector produces 30% of the world’s greenhouse gas emissions, 2.5 times more than global transport (Smetana et. al., 2015).  Apart from greenhouse gases, manure from livestock rearing also produces a large amount of phosphorus and nitrogen pollutants (Michel, Hartmann & Siegrist, 2021).

Worse of all, global food production is expected to increase by 70% in 2050, worsening the already enormous amount of pollution from food production (Smetana et. al., 2015). Therefore, there have been urgent calls for the transition towards less pollutive methods of food production. But are those alternative food production methods better? Stay tuned for future discussions.

 

References:

Smetana, S., Mathys, A., Knoch, A., & Heinz, V. (2015). Meat alternatives: Life cycle assessment of most known meat substitutes. The International Journal of Life Cycle Assessment, 20(9), 1254-1267. https://doi.org/10.1007/s11367-015-0931-6

Michel, F., Hartmann, C., & Siegrist, M. (2021). Consumers’ associations, perceptions and acceptance of meat and plant-based meat alternatives. Food Quality and Preference, 87, 104063. doi:10.1016/j.foodqual.2020.104063

Feature Image from https://unsplash.com/photos/x4QaRXytmow

Introducing Pollutive Food

Hi Everyone! I am Joel, a Geography Major from the National University of Singapore (NUS). As part of GE4237 Environmental Pollution, I would be maintaining this blog on pollution from food production.

For the next 12 weeks, I will be writing regularly on the production of various foodstuffs ranging from crops, livestock and even meat alternatives. I will be discussing the various types of pollutants, environmental/human impacts and evaluate potential solutions. Hope you will have a good time reading this blog. Do feel free to comment and share your thoughts

Signing off,

Joel Ng

Featured Image from https://unsplash.com/photos/sJ7pYyJFyuA

 

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