impacts of climate change Flashcards
3 negative impacts of climate change
glaciers melting(env) reduction in crop yield(people more natural disasters increase greenhouse gases flooding natural habitats destroyed
one positive of climate change
food production
ability to grow new crops
warmer in winters
tourism
how are crop yields affected by climate change
there affected by longer periods of droughts can lead to food shortages
how are glaciers affected by climate change
the rapid melting of glaciers affect the river systems and ecosystems thats depend on spring glacier can be flooded because of this or have little to water in the long term
def. of climate
the average weather conditions of an area occurring over many years
evidence for climate change
ice cores
pollen records
tree rings
historical sources
what are tree rings
narrower the ring the cooler the climate each year
each yr= one yr of growth
def. of weather
the day to day conditions of the atmosphere e.g temperature, precipitation, cloud covers
what are ice cores
each layer represents 1 layer of snowfall can extract co2 concentration in each layer
what are ice cores
each layer represents 1 layer of snowfall can extract co2 concentration in each layer
what are pollen records
can be trapped in ice/sedimentry rocks
show what each layer to work out what was growing in the past
historical sources?
personal diaries, religious records to examine the most recent historical climate
what is the meaning by natural climate change
not related to human activities, its warming or cooling due to natural reasons
name all 6 climate zones
Tundra temperate polar Mediterranean equatorial arid
state the term for the periods between major ice advatages
interglacial
