{"query_echo":{"q":"","filters":{"analysis_type":["historical data"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'historical data' 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=historical+data","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":"sgr-000162","url":"https://climateinsightsdirectory.org/document/sgr-000162","title":"gas","publisher":{"name":"Scientists for Global Responsibility","organization":"scientists-for-global-responsibility"},"document_type":"fact sheet","language":"en","date_published":null,"source_url":"https://www.sgr.org.uk/sites/default/files/Nicholls-Chemical-weapons-table.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","geography_discussed","analysis_type"],"summary":{"text":"The document presents two tables detailing the use of chemical weapons. The first table covers World War I (1914-1918), listing agents such as chlorine, phosgene, and mustard gas, with total casualties estimated at 1,240,000 and approximately 88,500 deaths. The second table lists more recent uses of nerve agents like sarin and tabun in Iraq and Syria, including the 1984-onwards Iran-Iraq conflict and the 2013 Ghouta attack.","ai_generated":true,"unit":"sgr-000162#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"During World War I (1914-1918), the total number of casualties across all fronts and combatants from poison gas was 1,240,000, with approximately 88,500 deaths.","ai_generated":true,"unit":"sgr-000162#insight-1","date_modified":"2026-10-23"},{"text":"Specific chemical agents used in World War I included ethyl bromacetate (tear gas), xylyl bromide (tear gas), chlorine (respiratory), phosgene (respiratory), mustard gas (vesicant), hydrogen cyanide (systemic respiration), and diphenyl chlorarsine (tear gas/irritant).","ai_generated":true,"unit":"sgr-000162#insight-2","date_modified":"2026-10-23"},{"text":"Recent examples of poison gas usage include the use of sarin nerve gas by Iraq in Iran from 1984 onwards, resulting in approximately 100,000 casualties and 20,000 deaths, and the use of sarin/tabun in Ghouta, Syria in 2013, causing 3,600 casualties and between 400 and 1,400 deaths.","ai_generated":true,"unit":"sgr-000162#insight-3","date_modified":"2026-10-23"}],"climate_tags":[],"geography_discussed":["France","Russian Empire","Ypres","United Kingdom","Arras","United States","Iran","Iraq","Kurdistan","Ghouta","Syria"],"frame_perspective":[],"analysis_type":["historical data"]}]}