Carbon Dioxide

Colorless and odorless gas vital to life on Earth

By: Caroline Hall

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  • Natural sources include decomposition, ocean release and respiration. Human sources come from activities like cement production, deforestation as well as the burning of fossil fuels like coal, oil and natural gas.
  • Carbon dioxide warms the Earth because it is a greenhouse gas in the atmosphere, but it also causes plants to provide less evaporative cooling, which leads to global warming.
  • High concentrations of carbon dioxide in confined areas may replace oxygen and cause dizziness, disorientation, suffocation, and even, death.
  • Ways to reduce your carbon foot print purchase green electricity, eat less red meat, walk, bike, or take public transportation, buy local produce.