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August 17, 2026 4 minutes Sierra Club 0 Comments Support CleanTechnica's work through a Substack subscription , on Patreon , or on Stripe . Help us produce all of the high-quality, original content we publish week after week despite the challenges of content-scraping AI, antisocial media, inflation, and other hurdles. The long-held rule is a commonsense protection against sonic booms and unnecessary climate emissions. Washington, D.C.

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