global warming Flashcards
1
Q
what are temp. proxies
name 4
A
temp. that are inferred from other data that can give an indication of the temperature but not an exact value tree rings coral ice cores (frozen isotopes) peat bog
2
Q
global warming
A
term used to for the rapid increase in global temp
3
Q
carbon sinks
A
reservoirs where carbon is removed from the atmosphere and locked up in organic or inorganic compounds
4
Q
frozen isotopes
A
analysis of the air trapped in the ice
proportion of oxygen isotopes reflect on temp
atmospheric co2 levels can be measured
5
Q
interglacials
A
warm periods experienced by the earth
opposite of an ice age
6
Q
dendrochronology
A
dating past events using tree rings growth
low in validity since many factors effect the growth of the rings
7
Q
peat bog
A
sampling cores from peat
looking at the pollen grains
type of plants grown within the area effect by climate
pollens can be used to see what the conditions were like
