1. How Convection Currents Affect Weather and Climate

2. Convection Currents Warm air near Earth’s surface rises and then cools as it goes up, a convection current is set up in the atmosphere.

3. Convection happens… On a global scale and causes global winds. On a smaller scale and causes local winds known as land and sea currents. On the ocean’s surface and influences the land masses that are near the ocean.

4. Regions or Climate Zones are determined by… Convection regions temperature differences between the equator and the poles Warm and cold surface ocean currents Three Atmospheric Convection Areas (Climate Zones) The Tropical Region The Temperate Region The Polar Region

5. Greenhouse effect Solar energy that is absorbed by Earth’s land and water surfaces is changed to heat that moves/radiates back into the atmosphere (troposphere) where heat cannot be transmitted through the atmosphere so it is trapped.