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</html><description>No sooner than we sent the &#x201C;Letters&#x201D; email you just received, we got one from Bill McKibben asking us to...</description><thumbnail_url>https://mailgun.substack.com/api/v1/email/open?token=eyJtIjoiPDIwMjIxMjExMTYxNzE1LjMuYjVkOGJhOGU1MTk1ZjAwZkBtZzEuc3Vic3RhY2suY29tPiIsInUiOjkzNjAzMDYsInIiOiJkd2NoYW5kbEBnbWFpbC5jb20iLCJkIjoibWcxLnN1YnN0YWNrLmNvbSIsInAiOjg5ODg2NTgwLCJ0IjoibmV3c2xldHRlciIsImEiOiJldmVyeW9uZSIsInMiOjQzODE0NiwiYyI6InBvc3QiLCJmIjpmYWxzZSwicG9zaXRpb24iOiJ0b3AiLCJpYXQiOjE2NzA3NzU0NDYsImV4cCI6MTY3MzM2NzQ0NiwiaXNzIjoicHViLTAiLCJzdWIiOiJlbyJ9.abYO_n4lZkyaGrjEv3uYkIbLDw4pVACFl5o7IqbeiPQ</thumbnail_url></oembed>
