Earth
Cutting through the smog: Is pollution getting worse?
The quality of air varies from country to country and in some places pea-soupers are becoming more frequent, in others, the air is getting ever cleaner
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The quality of air varies from country to country and in some places pea-soupers are becoming more frequent, in others, the air is getting ever cleaner
Carbon dioxide emissions from the energy sector have not increased for three years in a row even as the global economy grew