The International Solid Waste Association – ISWA, published a comprehensive report completed by SCS Engineers for ISWA under the Climate and Clean Air – CCAC, on reducing Short-Lived Climate Pollutants. A CCAC Solid Waste Emissions Estimation Tool – called SWEET, was used to investigate waste sector emissions of short-lived climate pollutants -termed SLCPs, and other greenhouse gases – GHGs.
Data was collected where multiple waste management scenarios in Tyre Caza, Lebanon. Publications on waste management in Lebanon, including an Integrated Waste Management Plan and Updated Master Plan for the closure and rehabilitation of uncontrolled dumpsites throughout Lebanon, provided data that were used in this study along with updated information provided by Lebanon’s Office of the Minister of State for Administrative Reform.
Different management options for reducing emissions of SLCPs over the short- and medium-term. Comparing emissions reductions achieved by implementing a range of programs over a meaningful time horizon provide greater clarity of vision to see which strategies produce the most climate benefits and are worth a high level of effort and the commitment of resources to achieve.
SWEET is designed to be used by solid waste planning professionals worldwide. It allows some degree of flexibility in selecting key inputs, which gives it greater control and ability to reflect local conditions but adds a level of complexity that may be difficult for some users to navigate. While offering users control of some model assumptions, SWEET includes many calculations and assumptions that are necessarily fixed and can produce unintended results given the model’s limitations. In addition, the assignment of input data that appropriately reflects actual and expected conditions can be challenging, especially when there is a large amount of information to be considered.
The reports on solid waste management in Lebanon and Tyre Caza following the waste management crisis provided multiple sources of data that required evaluation and processing before being used in SWEET.
Click here to read, share, and download the report, ESTIMATION OF WASTE SECTOR GREENHOUSE GAS EMISSIONS IN TYRE CAZA, LEBANON, USING THE SOLID WASTE EMISSIONS ESTIMATION TOOL (SWEET)
ISWA and CCAC will be sponsoring a training workshop on the use of SWEET in the future. For advice and guidance using SWEET contact Alex Stege, SCS Engineers Senior Project Advisor, and Expert on Landfill Gas Modeling.
An aggressive carbon abatement goal often referred to as deep decarbonization, requires systemic changes to the energy economy. The scale and complexity of these projects are enormous, but achievable in our children’s lifetime. Legal Pathways recently published a legal toolkit Legal Pathways to Deep Decarbonization in the United States containing key recommendations and information from its larger publication to be released later this year. Both are a treasure trove for public and private decision-makers who desire pathways to a smaller carbon footprint.
The slimmer version works as a legal guide for businesses and municipalities interested in reducing greenhouse gas (GHG) emissions in the U.S. While each entity may draw on some, but not all, of the publication, it is a significant resource for public and private decision-makers who desire, or are working toward meeting stricter regulatory policies.
The authors identify all the legal options for enabling the U.S. to start addressing a monumental environmental challenge. Decision-makers can use combinations of resources to achieve their desired goals by employing these legal tools.
Thirty-four chapters cover energy efficiency, conservation, and fuel switching; electricity decarbonization; fuel decarbonization; carbon capture and negative emissions; non-carbon dioxide climate pollutants, and a variety of crosscutting issues.1 Each topic area identifies the main legal issues; then covers the options involving federal, state, and local laws.
With enough detail for readers to comprehend pathways best suited for them, the book is written for those who do not have legal or environmental engineering backgrounds. The authors include options even if they are not politically realistic now, recognizing that some may have value over time by becoming a legal pathway.
Notes and Citations
1 “Legal Pathways to Deep Decarbonization in the United States,” by M. Gerrard and J. Dernbach, Editors, 2019, Retrieved from https://www.eli.org/eli-press-books/legal-pathways-deep-decarbonization-united-states