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PLEASE READ THE FOLLOWING TERMS AND CONDITIONS RELATING TO YOUR USE OF THIS SITE (THE “SITE”) CAREFULLY. The Site is operated by the Earth2Class Workshops for Teachers at the Lamont-Doherty Earth Observatory at Columbia University. By using the Site, you are deemed to have agreed to these terms and conditions. Columbia University may modify these terms and conditions at any time. By using this Site after any changes to these terms and conditions have been posted on the Site, you agree to accept those changes, whether or not you have reviewed them. If at any time you choose not to accept these terms and conditions of use, please do not use this Site. THESE TERMS AND CONDITIONS APPLY ONLY TO THIS SITE AND DO NOT APPLY TO OTHER WEB SITES OPERATED BY COLUMBIA UNIVERSITY.

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