{"query_echo":{"q":"","filters":{"analysis_type":["emissions reconstruction"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'emissions reconstruction' for facet 'analysis_type' is not in the controlled vocabulary."}]},"total":{"value":1,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?analysis_type=emissions+reconstruction","stability":"beta","ai_marking":{"digital_source_type":{"uri":"http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia","name":"Created using Generative AI"},"notice":"Summary and key insights are generated using artificial intelligence."},"results":[{"id":"ember-000181","url":"https://climateinsightsdirectory.org/document/ember-000181","title":"Emissions accounting variability","publisher":{"name":"Ember","organization":"ember"},"document_type":"report","language":"en","date_published":"2025-04-16","source_url":"https://ember-energy.org/chapter/emissions-accounting-variability/","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","geography_discussed","analysis_type"],"summary":{"text":"Satellite analysis indicates that fugitive methane emissions from Australian open-cut coal mines are increasing, contradicting a decline in company-reported figures. This discrepancy is attributed to the adoption of 'Method 2', a site-specific emissions estimation approach that allows companies to move away from higher state-based averages. In New South Wales, where state-based factors are higher, 75% of open-cut mines use Method 2, contributing to a reported emissions decrease of 65–70% according to Reputex. Ember's reconstruction of emissions using the state-based 'Method 1' shows a closer correlation with satellite data, which found emissions 90% to 107% higher than reported figures for 2020 and 2021 respectively.","ai_generated":true,"unit":"ember-000181#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Satellite data shows an increase in fugitive emissions from open-cut coal mining, which contradicts the decline seen in official company-led estimates.","ai_generated":true,"unit":"ember-000181#insight-1","date_modified":"2026-10-23"},{"text":"The transition from state-based (Method 1) to site-specific (Method 2) emissions estimation has led to a significant drop in reported emissions; Reputex estimates this shift has consistently reduced reported fugitive methane emissions by 65–70%.","ai_generated":true,"unit":"ember-000181#insight-2","date_modified":"2026-10-23"},{"text":"There is a stark difference in the adoption of Method 2 between Australian states: in 2023, the Climate Change Authority estimated that 75% of open-cut coal mines in New South Wales used Method 2, compared to only 25% in Queensland.","ai_generated":true,"unit":"ember-000181#insight-3","date_modified":"2026-10-23"},{"text":"In New South Wales, satellite estimates for 2020 and 2021 identified fugitive emissions that were 90% and 107% higher, respectively, than reported emissions, showing a closer correlation with a reconstructed inventory based on state-level Method 1 factors.","ai_generated":true,"unit":"ember-000181#insight-4","date_modified":"2026-10-23"},{"text":"The site-specific Method 2 is now mandatory for open-cut mines under the Safeguard Mechanism producing over 10 million tonnes per year and will become the industry standard for all Safeguard reporting coal mines in 2026.","ai_generated":true,"unit":"ember-000181#insight-5","date_modified":"2026-10-23"}],"climate_tags":[],"geography_discussed":["Queensland"],"frame_perspective":[],"analysis_type":["comparative analysis","emissions reconstruction"]}]}