A resource to help teach/study AQA's Cold environments unit - from http://www.coolgeography.co.uk

1. Reasons for Climate change and Ice Ages

2. Some definitions An interglacialis a geological interval of warmer global average temperature that separates glacial periods within an ice age. A glacial is a period of colder temperatures when ice thickens and advances A stadial is a period of colder temperatures during an interglacial, of insufficient duration or intensity to be considered a glaciation, or glacial period. An interstadial is a warmer period during a glaciation of insufficient duration or intensity to be considered an interglacial. Generally, interstadials endure for less than ten thousand years, interglacials for more than ten thousand. “There’s only one Inter in Milan!”

3. This is the patterns of Glacials and interglacials;

5. Discuss the evidence that exists to support the theory

7. Opinion line; do you strongly agree with or strongly disagree with... Changes in the earth’s position in space, its orbit and tilt Variations in sunspot activity, changing the amount of solar radiation received by the Earth Changes in the amount of volcanic dust affecting the amount of radiation reflected and trapped by the atmosphere Trapping of CO2 by the oceans Variations in ocean currents

8. What have we discovered this lesson?