Less Than 20 Percent of the World's Population Lived in Urban

question 21

True/False

Less than 20 percent of the world's population lived in urban areas in 1950; today it is over half.

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Definitions:

Global Warming

The observed rise in Earth's average surface temperature due to human-induced emissions of greenhouse gases.

Carbon Dioxide Levels

The concentration of CO2 gas in the Earth's atmosphere, influential in the discussion of climate change.

Temperature Change

Refers to variations in the average temperature of an environment or the Earth over a specific period, significantly influencing climate patterns and ecosystems.

Earth's Atmosphere

The layer of gases surrounding Earth, essential for life, as it provides air, protects from harmful rays of the sun, and maintains the planet's temperature.