Carbon Dioxide And Global Warming - How Do We Know?

The video explains the relationship between CO2 levels and Earth's temperature, highlighting that high CO2 levels correlate with warmer climates due to the greenhouse effect. CO2 traps heat from the sun, preventing it from escaping back into space, thus warming the planet. Other greenhouse gases like water vapor, methane, and nitrous oxide also contribute, but CO2 is the primary driver of current warming trends. The video emphasizes the inevitability of CO2's warming effect, comparing it to the certainty of gravity.

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