{"query_echo":{"q":"","filters":{"analysis_type":["correlation study"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'correlation study' for facet 'analysis_type' is not in the controlled vocabulary."}]},"total":{"value":3,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?analysis_type=correlation+study","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":"iai-000173","url":"https://climateinsightsdirectory.org/document/iai-000173","title":"Wind pattern change along a period of coastal occurrence variation of a stinging medusa on a SW Atlantic beach","publisher":{"name":"Inter-American Institute for Global Change Research","organization":"inter-american-institute-for-global-change-research"},"document_type":"research paper","language":"en","date_published":"2025-01-13","source_url":"https://iai.int/es/pub_acad/wind-pattern-change-along-a-period-of-coastal-occurrence-variation-of-a-stinging-medusa-on-a-sw-atlantic-beach/","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","analysis_type"],"summary":{"text":"The study identifies a significant decrease in wind speed and a reduction in coastal upwelling days at Monte Hermoso between 2008 and 2015, coinciding with the absence of the medusa Olindias sambaquiensis. It also notes a 0.4 °C increasing trend in sea surface temperatures over the eight-year period, suggesting these environmental changes contribute to the lower occurrence of the species.","ai_generated":true,"unit":"iai-000173#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"A significant change in wind patterns was detected at Monte Hermoso from 2008 to 2015, characterized by a decrease in wind speed from 6.3 m s-1 to 2.4 m s-1, with calms increasing by over 44.2% and light winds increasing by 7.5%.","ai_generated":true,"unit":"iai-000173#insight-1","date_modified":"2026-10-23"},{"text":"The reduction in wind speed impeded coastal upwelling, the process that brings medusae to the coast; coastal upwelling-days dropped from 45 in summer 2008 to only 8 in summer 2015.","ai_generated":true,"unit":"iai-000173#insight-2","date_modified":"2026-10-23"},{"text":"Sea surface temperatures (SST) showed a positive anomaly over the eight-year period, indicating an increasing trend of 0.4 °C, which may negatively impact polyp reproduction during winters.","ai_generated":true,"unit":"iai-000173#insight-3","date_modified":"2026-10-23"}],"climate_tags":["sea surface temperature","coastal management"],"geography_discussed":[],"frame_perspective":[],"analysis_type":["environmental analysis","correlation study"]},{"id":"clipolin-000668","url":"https://climateinsightsdirectory.org/document/clipolin-000668","title":"ROYALTIES DA MINERAÇÃO E O DESENVOLVIMENTO SOCIOECONÔMICO NO PARÁ","publisher":{"name":"Climate Policy Initiative","organization":"climate-policy-initiative"},"document_type":"research paper","language":"pt","date_published":"2022-07","source_url":"https://www.climatepolicyinitiative.org/wp-content/uploads/2022/06/METODOLOGIA_ROYALTIES-DA-MINERACAO-PARA_PT.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The research employs a fixed-effects model to analyze how mining royalties (CFEM) correlate with socioeconomic indicators (health, education, employment, and income) and homicide rates in Pará. While simple correlations suggest royalties improve socioeconomic variables and increase violence, the application of municipality and year fixed effects removes the statistical significance of these correlations. However, the study finds a strong positive correlation between increased royalties and municipal spending, particularly in public sector salaries and pensions, and suggests that royalties may reduce municipal efforts to collect urban property tax (IPTU).","ai_generated":true,"unit":"clipolin-000668#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"When using a methodology that ignores fixed municipality characteristics, mining royalties appear to have a positive and statistically significant correlation with health, education, employment, income, and violence. However, when fixed effects for both municipality and year are included, these correlations lose statistical significance.","ai_generated":true,"unit":"clipolin-000668#insight-1","date_modified":"2026-10-23"},{"text":"An increase of R$ 1 in mining royalties is associated with an equivalent increase in municipal expenditures, split equally between current and capital expenditures. The areas most affected by this increase are public sector salaries and pensions, followed by health and education.","ai_generated":true,"unit":"clipolin-000668#insight-2","date_modified":"2026-10-23"},{"text":"The data suggests that mining royalties do not necessarily lead to direct spending in socioeconomic areas, but rather trigger budget adjustments that increase spending on public sector salaries and pensions.","ai_generated":true,"unit":"clipolin-000668#insight-3","date_modified":"2026-10-23"},{"text":"Increased mining royalties are not correlated with an increase in the collection of urban property tax (IPTU), which may indicate that CFEM reduces the fiscal efforts of the benefiting municipalities.","ai_generated":true,"unit":"clipolin-000668#insight-4","date_modified":"2026-10-23"}],"climate_tags":["fiscal policy"],"geography_discussed":["Brazil"],"frame_perspective":[],"analysis_type":["econometric analysis","correlation study"]},{"id":"wri-000564","url":"https://climateinsightsdirectory.org/document/wri-000564","title":"Urban Blue-Green Conundrum: A 10-City Study on the Impacts of Urbanization on Natural Infrastructure in India","publisher":{"name":"World Resources Institute","organization":"world-resources-institute"},"document_type":"research paper","language":"en","date_published":null,"source_url":"https://www.wri.org/research/urban-blue-green-conundrum-10-city-study-impacts-urbanization-natural-infrastructure-india","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The study analyzes the impact of urbanization on natural infrastructure in 10 major Indian cities from 2000 to 2015, finding significant increases in built-up areas and a corresponding loss of surface water and groundwater recharge potential. It advocates for an integrated urban blue-green approach to planning to mitigate risks like urban flooding and water scarcity.","ai_generated":true,"unit":"wri-000564#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Between 2000 and 2015, the built-up area in the 10 studied cities grew by an average of 47 percent within 0–20 km of the city center and 134 percent in the periphery (20–50 km).","ai_generated":true,"unit":"wri-000564#insight-1","date_modified":"2026-10-23"},{"text":"The 10 cities experienced an estimated loss of 307 sq. km of surface water between 2000 and 2015, representing a 15 percent decrease.","ai_generated":true,"unit":"wri-000564#insight-2","date_modified":"2026-10-23"},{"text":"Approximately 44 percent (1,177 sq. km) of new development in the 0–50 km urban region of the study cities occurred on areas with very high or high recharge potential between 2000 and 2015.","ai_generated":true,"unit":"wri-000564#insight-3","date_modified":"2026-10-23"},{"text":"Urbanization disconnected from the natural environment leads to negative outcomes including urban flooding, water scarcity, and increased groundwater stress, often because development is sited on vulnerable zones like lake beds, floodplains, and low-lying areas.","ai_generated":true,"unit":"wri-000564#insight-4","date_modified":"2026-10-23"}],"climate_tags":["urbanization","green infrastructure","groundwater recharge","urban flooding","water scarcity","urban planning"],"geography_discussed":["Ahmedabad","Bengaluru","Chennai","Delhi","Hyderabad","Jaipur","Kolkata","Mumbai","Pune","Surat"],"frame_perspective":[],"analysis_type":["correlation study","spatial analysis"]}]}