RT @TonyClimate: For the past 1,700 years, the Colorado River Basin has regularly alternated between wet and dry periods. The Anasazi peop…
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1,298 followers
RT @TonyClimate: For the past 1,700 years, the Colorado River Basin has regularly alternated between wet and dry periods. The Anasazi peop…
184 followers
RT @TonyClimate: For the past 1,700 years, the Colorado River Basin has regularly alternated between wet and dry periods. The Anasazi peop…
165 followers
RT @TonyClimate: For the past 1,700 years, the Colorado River Basin has regularly alternated between wet and dry periods. The Anasazi peop…