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Our graduate student Sean was featured on Mothership.sg's video series Human Nature: Saikang warrrior Dung Beetles, where he shared about his research.
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By Hua Qian Hui
In view of the news that no levy will be placed on plastic bags in Singapore [1], there is a greater need for citizens to adopt a greener lifestyle. But why?
Plastics not only require a massive amount of non-renewable resources [2] to produce, its inadvertent disposal upon a single-use and the consequences that follow are also giving conservationists a huge headache. In 2016 alone, the amount of plastic disposed in Singapore reached 147kg per person [3] and in 2017, 2640 plastic bags are thrown away every 3 seconds [4], yet our plastic recycling rate remained at 7% since 2003 [3].
Such unnecessary and unsustainable use of plastics has already impacted us in many ways negatively. Firstly, plastics are one of the most common types of rubbish polluting our shores [5] where trash of hundreds of kilograms [6] can easily be picked up. Secondly, plastics are injuring and killing marine life [7,8] including whales, birds and turtles through, for example, entanglement, ingestion and smothering [9]. In fact, plastics have already found its way into our bodies [10,11] from our seafood consumption that comes with adverse health effects like reproductive abnormalities [12].
In view of the news that no levy will be placed on plastic bags in Singapore [1], there is a greater need for citizens to adopt a greener lifestyle. But why?
Plastics not only require a massive amount of non-renewable resources [2] to produce, its inadvertent disposal upon a single-use and the consequences that follow are also giving conservationists a huge headache. In 2016 alone, the amount of plastic disposed in Singapore reached 147kg per person [3] and in 2017, 2640 plastic bags are thrown away every 3 seconds [4], yet our plastic recycling rate remained at 7% since 2003 [3].
Such unnecessary and unsustainable use of plastics has already impacted us in many ways negatively. Firstly, plastics are one of the most common types of rubbish polluting our shores [5] where trash of hundreds of kilograms [6] can easily be picked up. Secondly, plastics are injuring and killing marine life [7,8] including whales, birds and turtles through, for example, entanglement, ingestion and smothering [9]. In fact, plastics have already found its way into our bodies [10,11] from our seafood consumption that comes with adverse health effects like reproductive abnormalities [12].
Plastic bag found wrapped around the torso of a monitor lizard. Photo by Peter McDonnell [13]
As Singapore deals with waste via incineration, every kind of wastage is contributing to the huge amounts of climate-relevant emissions [14] and toxic ash spewed from our plants. This is partly why a switch to biodegradable plastics [15] does not solve the problem at its root, and usage reduction is always encouraged. At the current usage rate of 3 billion plastic bags per year locally (using 37 million kg of crude oil and 12 million kg of natural gas) [16], a collective effort in bringing your own reusable items would make a significant difference.
While usage varies amongst individuals, each reusable bag can replace 125 single-use plastic bags [17] in a year. Besides, opting for eco-friendly items to replace disposables has become increasingly accessible with the rise of more eco-vendors online. The following list of reusable items would make an ideal first step in commencing your plastic-free journey.
While usage varies amongst individuals, each reusable bag can replace 125 single-use plastic bags [17] in a year. Besides, opting for eco-friendly items to replace disposables has become increasingly accessible with the rise of more eco-vendors online. The following list of reusable items would make an ideal first step in commencing your plastic-free journey.
Some of the items sold by 'The Sustainability Project' include produce bags and a variety of straws that can permanently replace plastic ones
Say ‘no’ to plastics and go for the food-grade snack pouch to bag your curry puff! More on project.r
Change is happening but slowly. According to a review on international policies in tackling single-use plastics [18], plastic bags are banned and/or taxed in many countries like France, Morocco, India and South Africa. Locally, eco-warriors like Ms Shihui Khee would always bring along reusable items to bag her purchases in a bid to reduce wastage that could contribute to global warming [19]. She would also not patronize stalls that insist on using disposable packaging, thereby creating awareness that such eco-conscious consumers exist and, hopefully, increasing. Importantly, although alternatives can be limited by industrial packaging, any Tom, Dick or Harry can adopt a more eco-friendly lifestyle by starting small, such as bringing your own reusable straw and food pouch to cut down on unnecessary plastics.
Small steps do make a difference.
Small steps do make a difference.
References:
1. Boh, S. Parliament: No plan to impose plastic bag levy, other types of disposable bags not much greener: Amy Khor. (2018).
2. Halden, R. U. Plastics and Health Risks. Annu. Rev. Public Health 31, 179–194 (2010).
3. Pek, S. B. Carrot and stick approach needed in tackling plastic waste. (2018).
4. Paulo, D. A. & Peh, Y. The monstrous scale of plastic bag wastage in Singapore. (2018).
5. Insights on Marine Trash in Singapore. (2014). Available at: http://www.greenfuture.sg/2014/08/12/insights-on-marine-trash-in-singapore/. (Accessed: 9th May 2018)
6. Othman, L. Tanah Merah beach cleaning drive turns up 500kg of waste. (2016).
7. Sheavly, S. B. & Register, K. M. Marine debris & plastics: Environmental concerns, sources, impacts and solutions. J. Polym. Environ. 15, 301–305 (2007).
8. Abreo, N. A. S., Macusi, E. D. & Blatchley, D. D. Ingestion of marine plastic debris by green turtle(Chelonia mydas) in davao gulf, Mindanao, Philippines. Philipp. J. Sci. 145, 17–23 (2016).
9. Gregory, M. R. Environmental implications of plastic debris in marine settings--entanglement, ingestion, smothering, hangers-on, hitch-hiking and alien invasions. Philos. Trans. R. Soc. B Biol. Sci. 364, 2013–2025 (2009).
10. Smillie, S. From sea to plate: how plastic got into our fish. (2017).
11. Cole, M., Lindeque, P., Halsband, C. & Galloway, T. S. Microplastics as contaminants in the marine environment: A review. Mar. Pollut. Bull. 62, 2588–2597 (2011).
14. Rochman, C. M. et al. Policy: Classify plastic waste as hazardous. Nature 494, 169–170 (2013).
15. Sudesh, K. & Iwata, T. Sustainability of biobased and biodegradable plastics. Clean - Soil, Air, Water 36, 433–442 (2008).
16. Tan, A. 3 billion plastic bags a year? Cut use with mandatory tax. (2017).
17. Mahmud, A. H. Using 1 reusable bag over a year can replace 125 plastic, 52 paper bags: NEA study. (2018).
18. Xanthos, D. & Walker, T. R. International policies to reduce plastic marine pollution from single-use plastics (plastic bags and microbeads): A review. Mar. Pollut. Bull. 118, 17–26 (2017).
19. Mahmud, A. H. From ditching disposables to composting, the women going the extra mile to reduce waste. (2018).
1. Boh, S. Parliament: No plan to impose plastic bag levy, other types of disposable bags not much greener: Amy Khor. (2018).
2. Halden, R. U. Plastics and Health Risks. Annu. Rev. Public Health 31, 179–194 (2010).
3. Pek, S. B. Carrot and stick approach needed in tackling plastic waste. (2018).
4. Paulo, D. A. & Peh, Y. The monstrous scale of plastic bag wastage in Singapore. (2018).
5. Insights on Marine Trash in Singapore. (2014). Available at: http://www.greenfuture.sg/2014/08/12/insights-on-marine-trash-in-singapore/. (Accessed: 9th May 2018)
6. Othman, L. Tanah Merah beach cleaning drive turns up 500kg of waste. (2016).
7. Sheavly, S. B. & Register, K. M. Marine debris & plastics: Environmental concerns, sources, impacts and solutions. J. Polym. Environ. 15, 301–305 (2007).
8. Abreo, N. A. S., Macusi, E. D. & Blatchley, D. D. Ingestion of marine plastic debris by green turtle(Chelonia mydas) in davao gulf, Mindanao, Philippines. Philipp. J. Sci. 145, 17–23 (2016).
9. Gregory, M. R. Environmental implications of plastic debris in marine settings--entanglement, ingestion, smothering, hangers-on, hitch-hiking and alien invasions. Philos. Trans. R. Soc. B Biol. Sci. 364, 2013–2025 (2009).
10. Smillie, S. From sea to plate: how plastic got into our fish. (2017).
11. Cole, M., Lindeque, P., Halsband, C. & Galloway, T. S. Microplastics as contaminants in the marine environment: A review. Mar. Pollut. Bull. 62, 2588–2597 (2011).
- 12. Thompson, R. C., Moore, C. J., vom Saal, F. S. & Swan, S. H. Plastics, the environment and human health: current consensus and future trends. Philos. Trans. R. Soc. B Biol. Sci. 364, 2153–2166 (2009).
14. Rochman, C. M. et al. Policy: Classify plastic waste as hazardous. Nature 494, 169–170 (2013).
15. Sudesh, K. & Iwata, T. Sustainability of biobased and biodegradable plastics. Clean - Soil, Air, Water 36, 433–442 (2008).
16. Tan, A. 3 billion plastic bags a year? Cut use with mandatory tax. (2017).
17. Mahmud, A. H. Using 1 reusable bag over a year can replace 125 plastic, 52 paper bags: NEA study. (2018).
18. Xanthos, D. & Walker, T. R. International policies to reduce plastic marine pollution from single-use plastics (plastic bags and microbeads): A review. Mar. Pollut. Bull. 118, 17–26 (2017).
19. Mahmud, A. H. From ditching disposables to composting, the women going the extra mile to reduce waste. (2018).
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One of the topics we feel strongly about in our lab is trying to reduce waste, in this case, plastic waste. Recently, Dr. P gave an interview in the Tamil program Ethiroli about plastic waste and pollution in Singapore.
She talked about the environmental consequences associated with both the production and destruction of plastics. There are a number of things we can do as individuals to be more conscious of our negative effects on the environment.
She talked about the environmental consequences associated with both the production and destruction of plastics. There are a number of things we can do as individuals to be more conscious of our negative effects on the environment.
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Our RA Hua Qian Hui gave a live interview in Mandarin about our BSF research on Capital 95.8 FM.
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Dr. P was featured on a local Tamil language program called Achamillai Achamillai as a labour day special on Indian women in different careers. She talked about her academic journey and the challenges involved research.
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Article on the BSF research by Channel NewsAsia.
"The NUS team is using research and development to not only better understand the functions and fundamental biology of the black soldier fly, but modify its behaviour to better suit the country’s urban space."
"The NUS team is using research and development to not only better understand the functions and fundamental biology of the black soldier fly, but modify its behaviour to better suit the country’s urban space."
Photo: Pichayada Promchertchoo
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Our research on using fly larvae to reduce food waste was featured in the Straits Times today. "Black soldier flies, armed with voracious appetites as larvae, are being bred here to eat discarded food, at the same time creating a rich fertiliser for plants. When their job is done, the larvae themselves are turned into nutritious animal food."
ST photos: Johnathan Choo
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The Science Cafe is a free event that occurs every last Thursday of the month and it aims to promote scientific discourse among the public. The organisers invite scientists and science professionals to speak in a casual setting to discuss a wide range of topics. Dr. P was invited to give a talk about a insects and she gave one entitled "The sexy lives of these sexy flies". It was well received and the Q&A was especially engaging with audience members asking questions ranging from insect biodiversity to policy to fly p*rn. Certainly a memorable event.
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NParks and Mr Sivasothi (@sivasothi) organised a 'Careers in Conservation' workshop which was held at the Singapore Botanical Gardens targeting youth with zero background but had interests in pursuing jobs in conservation. It was a fun experiences and participants got to meet and interact with industrial mentors from various fields, ranging from statutory boards to private companies. Dr P. was invited to participate as a mentor to highlight the opportunities that were available in academia and research industries. She even received followup emails from participants that had more specific questions.
For those interested in finding our more, below is a simple map of the possibilities one could pursue in Singapore.
For those interested in finding our more, below is a simple map of the possibilities one could pursue in Singapore.
Image courtesy of N. Sivasothi.
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Dr P. spent a great hour talking about science education and careers in STEM with nearly 300 12-year old students at Bukit Panjang Primary School. It so happens Dr P. attended this same school nearly 20 years ago and it was great to be back giving a talk as an alumni.
The 45 min Q&A session was a particular highlight because there were numerous questions spanning a whole range of topics. Dr P. was especially impressed by a young boy who asked her if the gender pay inequality existed in science. He also her asked what the trade off was between economic growth and environmental sustainability. Other questions included queries about the Big Bang, how hurricanes are formed, the role of humans in triggering earthquakes, what it was like studying overseas as well as which came first, the chicken or the egg. Overall it was a truly enjoyable experience. But as usual, this is Singapore... so the very first question was "How much money do you make?".
The 45 min Q&A session was a particular highlight because there were numerous questions spanning a whole range of topics. Dr P. was especially impressed by a young boy who asked her if the gender pay inequality existed in science. He also her asked what the trade off was between economic growth and environmental sustainability. Other questions included queries about the Big Bang, how hurricanes are formed, the role of humans in triggering earthquakes, what it was like studying overseas as well as which came first, the chicken or the egg. Overall it was a truly enjoyable experience. But as usual, this is Singapore... so the very first question was "How much money do you make?".
