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Across

2. The trapping of heat in Earth’s atmosphere that keeps the planet warm.

3. Energy sources such as coal, oil, and natural gas that release greenhouse gases when burned.

5. The large-scale cutting or removal of forests which reduces CO₂ absorption.

Down

1. The gas released in large amounts when we burn coal, oil, and gas (often written as CO₂).

4. A powerful greenhouse gas produced by livestock and landfills (chemical formula CH₄).

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