{"schemaVersion":"report-figure-v1","report":{"slug":"solar-brightening-dimming","title":"Brightening and Dimming: The Sky Is Not a Constant","url":"https://solaranalytica.com/solar-brightening-dimming","datePublished":"2026-04-23","lastReviewed":"2026-07-26"},"figure":{"id":"merra2-ghi-change","title":"The MERRA-2 read. GHI change, 2014-2024 window vs 1994-2003 window","unit":"%","caption":"Instrument one: NASA MERRA-2 reanalysis. GHI change, 2014-2024 against 1994-2003. Across all 40 markets, 26 brightened and 14 dimmed; the set average is +0.4%.","series":[{"label":"Berlin","value":6.8},{"label":"London","value":3.6},{"label":"Paris","value":3.5},{"label":"Santiago","value":3.5},{"label":"Athens","value":3.3},{"label":"Perth","value":1},{"label":"Riyadh","value":-1.5},{"label":"Shanghai","value":-2.6},{"label":"Jakarta","value":-2.9},{"label":"Reykjavik","value":-4.1},{"label":"Jodhpur","value":-6.1}]},"csv":"https://solaranalytica.com/reports/solar-brightening-dimming/figures/merra2-ghi-change/data.csv","publicationState":"fixed-edition","boundary":"The figure remains bound to the report edition. A newer upstream release creates a review obligation and never rewrites these rows automatically."}