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Humans and the Climate

Across
The clearing or thinning of forests by humans
Color-coded index that reports the daily quality of outdoor air and the health risks associated with it
Suitable and fit for a person to live in
Down
Released by oil and gas production, cattle farming, natural decomposition in landfills
Gases that capture the suns radiant energy and keep heat from escaping our planet and making it habitable for humans
Buildings block the natural movement of the wind and can cause air pollution to accumulate within the human made canyon