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From Raindrop to Tap
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From Sunshine to Light Bulb
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Frozen Extremes
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Fukushima Nuclear Disaster
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7.6 |
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Galapagos Islands Research Journal
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5.3 |
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Global Climate Change
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Global Warming Alert!
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8.0 |
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Gold
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7.0 |
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Great Barrier Reef Research Journal
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6.0 |
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Great Lakes Research Journal
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5.7 |
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Gulf Oil Spill
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6.8 |
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Habitats and Wildlife in Danger
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7.3 |
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Heat Wave and Drought Readiness
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How Do Wind and Water Change Earth?
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How Is Soil Made?
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5.4 |
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How to be a Rock Collector
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6.2 |
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How We Get Food
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How We Use Fossil Fuels
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How We Use Rocks and Minerals
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How We Use Water
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How We Use Wood
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Human Fossils
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6.1 |
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Human Impacts on Earth Systems
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Human-made Disasters
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7.1 |
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Canada
USA
