| Unit Title | Author | |
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2021 | ||
| Dr. David L. Turner | ||
| Keywords: “Let it Shine”, and solar cell, carbon emission, carbon footprint, renewable energy, solar energy, wind energy, wind turbines | ||
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| David L. Turner | ||
| Keywords: " garbage, "Let us Breathe Clean Air, carbon footprint, climate change, glaciers, greener schools., Pepper Middle School, recycle, recycling, Tilden Middle School | ||
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