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  1. February: measurements from Mauna Loa Observatory confirmed that, for the primary time, atmospheric CO2 levels reached 417 parts per million (ppm), a concentration 50 increased than the 278ppm pre-industrial stage.

  2. Named after Copper Falls State Park, during which they are situated, Copper Falls is set within a scenic gorge that has been carved out by the Unhealthy River and is surrounded by rugged rocky landscapes.

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