Methodology / corrections / accessibility
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Use the public email for site questions and source-backed corrections. No form, account, or data-entry system is required.
Direct email
Write to the chart desk.
For methodology questions, correction requests, accessibility reports, editorial inquiries, or licensing discussions, email the address below.
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Include useful context
Corrections: page URL, quoted text, and supporting source.
Chart questions: instrument, horizon, unit, and the visual element involved.
Accessibility: device, browser, assistive technology, and the barrier encountered.
Editorial: topic, audience, and why the proposed source is authoritative.
Before writing