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Chemistry

Carbon Dioxide

Quick fact

Atmospheric carbon dioxide levels are now higher than at any point in the past 800,000 years, and the current concentration of over 420 ppm is a direct result of human activities like burning fossil fuels.

Why this is interesting

You exhale carbon dioxide with every breath, yet this invisible gas is one of the most powerful forces shaping Earth's climate. How can something so familiar be so impactful?