Challenging puzzle for experienced crossword solvers
Global Warming and Greenhouse Effects
Moderate difficulty suitable for most players
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Across
- 1. Old fuels formed from ancient plants and animals
- 2. Process contributing to rising sea levels as ice turns to water
- 4. Layer high in the atmosphere protecting Earth from UV rays
- 5. Element central to many greenhouse gases driving climate change
- 6. To adjust to new climate conditions for survival
Down
- 3. Gases released into the atmosphere, often from fossil fuels
- 7. Extended dry period worsened by climate shifts
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