Climate change mitigation potential of transitioning from open dumpsters in Peru: Evaluation of mitigation strategies in critical dumpsites

Cristóbal, Jorge; Vázquez‐Rowe, Ian; Margallo, María; Ita-Nagy, Diana; Ziegler-Rodriguez, Kurt; Laso, Jara; Ruiz‐Salmón, Israel; Kahhat, Ramzy; Aldaco, Rubén

doi:10.1016/j.scitotenv.2022.157295

Cited by 11 publications

(4 citation statements)

References 15 publications

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“…Peru lacks landfilling infrastructure so much of its waste resides in open dumpsites wh ich may be unaccounted for in UNFCCC reports (Ziegler-Rodriguez et al, 2019). Adding adequate closure systems to these dumpsites could greatly reduce Peru's methane emissions (Cristóbal et al, 2022). In Argentina, TROPOMI has been used previously to identify a strongly-emitting landfill in Buenos Aires (Maasakkers et al, 2022), where we also find an upward correction to our prior estimate.…”

supporting

confidence: 48%

Satellite quantification of methane emissions from South American countries: A high-resolution inversion of TROPOMI and GOSAT observations

Hancock,

Jacob,

Chen

et al. 2024

Preprint

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Abstract. We use 2021 TROPOMI and GOSAT satellite observations of atmospheric methane in an analytical inversion to quantify national methane emissions from South America at up to 25 km × 25 km resolution. From the inversion, we derive optimal posterior estimates of methane emissions correcting the national anthropogenic emission inventories reported by individual countries to the United Nations Framework Convention on Climate Change (UNFCCC) and taken here as prior estimates. We also evaluate two alternative wetland emission inventories (WetCHARTs and LPJ-wsl) as prior estimates. Our best posterior estimates for wetland emissions are consistent with previous inventories for the Amazon but lower for the Pantanal and higher for the Parana. Our best posterior estimate of South American anthropogenic emissions is 48 (41–56) Tg a-1, where numbers in parentheses are the range from our inversion ensemble. This is 55 % higher than UNFCCC reports and is dominated by livestock (65 % of anthropogenic total). We find that TROPOMI and GOSAT observations can effectively optimize and separate national emissions by sector for 10 of the 13 countries and territories in the region, 7 of which account for 93 % of continental anthropogenic emissions: Brazil (19 (16–23) Tg a−1), Argentina (9.2 (7.9–11) Tg a−1 ), Venezuela (7.0 (5.5-9.9) Tg a−1), Colombia (5.0 (4.4–6.7) Tg a−1), Peru (2.4 (1.6–3.9) Tg a−1), Bolivia (0.96 (0.66–1.2) Tg a−1), and Paraguay (0.93 (0.88 – 1.0) Tg a−1). Our estimates align with UNFCCC reports for Brazil, Bolivia, and Paraguay, but are significantly higher for other countries. Emissions in all countries are dominated by livestock (mainly enteric fermentation) except for oil/gas in Venezuela and landfills in Peru. Methane intensities from the oil/gas industry are high in Venezuela (33 %), Colombia (6.5 %) and Argentina (5.9 %). Country-average emission factors for enteric fermentation from cattle in UNFCCC reports are in the range 46–60 kg head-1 a-1, close to the IPCC Tier 1 estimate which is mostly based on data from Brazil. Our inversion yields cattle enteric fermentation emission factors consistent with the UNFCCC reports for Brazil and Bolivia but a factor of two higher for other countries. The discrepancy for Argentina can be corrected by using IPCC Tier 2 emission estimates accounting for high milk production.

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supporting

confidence: 48%

Satellite quantification of methane emissions from South American countries: A high-resolution inversion of TROPOMI and GOSAT observations

Hancock,

Jacob,

Chen

et al. 2024

Preprint

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“…These dumpsites are not only located in open areas, but also close to riverbanks or at the seashore. The lack of controlled waste disposal management sites throughout the main cities, except Lima, along the Peruvian coast (e.g., Arequipa, Trujillo, Chiclayo, or Piura) (Cristóbal et al., 2022), as well as the main tourist destinations, suggests that important releases of waste, including plastics, are reaching the Pacific Ocean. After this evaluation, a more specific quantification scheme to estimate the amount of plastic waste that is either released or retained at a watershed scale can be developed for a more accurate estimation of the mismanaged plastic waste that could be arriving at the ocean.…”

Section: Introductionmentioning

confidence: 99%

Developing a methodology to quantify mismanaged plastic waste entering the ocean in coastal countries

Ita-Nagy

Vázquez‐Rowe

Kahhat

2022

J of Industrial Ecology

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Marine plastic accumulation has gained international attention in recent years.Sources, pathways, and environmental impacts are being currently studied to understand the complex interactions during waste, especially plastic, transportation to the sea. Rivers have been identified as debris corridors allowing transportation of mismanaged waste. However, there is also evidence of waste accumulation in river basins, suggesting they can also act as sinks. Thus, assuming a uniform and continuous transportation of waste through rivers towards the ocean may signify an oversimplification.This study proposes a methodology to estimate plastic release to the ocean, considering a more detailed characterization of each river basin, including natural attributes and manmade constructions that may act as barriers or boosters for this release. The methodology is exemplified using a case study for the Region of Piura, Peru, and estimating a range of 4.2 to 13.9 kg/person/year of plastic waste reaching the Pacific coast during 2018. These results, when compared with the existing literature, demonstrate more conservative estimations. This methodology is presented as a useful tool that can be easily applied to develop more accurate mismanaged waste dissipation along different compartments.

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“…Scholars have concentrated on elucidating the factors that influence individuals' comprehension of waste management and recycling, as well as their attitudes and behaviours toward environmentally friendly practices, food waste reduction, and sustainable development. Persuasive communication strategies that employ symbols and graphics, such as infographics, have proven effective in promoting better waste sorting practices, particularly in public spaces utilizing colour-coded bins, as presented in [27], which underscores the correlation between respondents' attitudes toward waste management and recycling and their level of familiarity with waste management practices, similarly presented in [28].…”

Section: Media Exposure and Information Perceptionsmentioning

confidence: 97%

“Waste Is Wealth”: Circular Economy Strategies from Media Persuasion to Utilization

Jongsuksomsakul

2024

Sustainability

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Circular economy strategies encompassing “Waste is Wealth” (also known as “Waste is Gold”) policies in Thailand have been popularised through various media. This study focused on a community of people in the central north of Thailand and their ”return waste for money” practices, with 403 participants surveyed in mid-2022. The analysis of their responses, using descriptive and inferential statistics, identified the factors contributing to the gap between the available information in the media regarding the existence of regulations and policies addressing the recycling and reusing of waste and people’s responses to that information. Residents’ knowledge and understanding of proper waste management, derived from the media, were essential elements in educating communities. The collection and disposal of garbage were handled very differently between the rural and urban communities, with different municipalities making different provisions for residents’ waste disposal. Our analysis showed that a holistic approach was needed, particularly including the publication of comprehensive and understandable information on government policies and regulations, the differentiation of waste material types, garbage and waste collection, and disposal methods, including returning, recycling, and reuse, which were identified as being necessary for effective and efficient waste disposal and encouraging recycling and reuse. It was shown that without valid information available via social media and the mass media, peoples’ attitudes and behaviours will not change and the recycling of plastic waste materials will be limited, even with the promise of Waste is Wealth.

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Climate change mitigation potential of transitioning from open dumpsters in Peru: Evaluation of mitigation strategies in critical dumpsites

Cited by 11 publications

References 15 publications

Satellite quantification of methane emissions from South American countries: A high-resolution inversion of TROPOMI and GOSAT observations

Satellite quantification of methane emissions from South American countries: A high-resolution inversion of TROPOMI and GOSAT observations

Developing a methodology to quantify mismanaged plastic waste entering the ocean in coastal countries

“Waste Is Wealth”: Circular Economy Strategies from Media Persuasion to Utilization

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