feedback mechanisms in long term climate change

Question 1

positive feedback

Answer 1

amplifies changes in a glacial budget

Question 2

cooling

Answer 2

leads to further cooling and helps development of glacial periods

Question 3

snow and ice cover

Answer 3

an increase can raise the surface albedo (reflectivity of earths surface) sp more solar energy is reflected back to space. leading to further cooling and more snow and ice cover across the planet

Question 4

warming

Answer 4

leads to further warming and can help the development of interglacial periods

Question 5

negative feedback

Answer 5

can reduce/diminish changes in a glacial budget

Question 6

thermohaline ocean circulation

Answer 6

brings warm salty water to NW Europe leading to warm winter conditions

Question 7

younger dryas

Answer 7

disruption to the ocean current in the north atlantic led to a rapid period of cooling