climate change Flashcards

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1
Q

what evidence is there for climate change

A

rising sea levels, ice cores , paintings and diaries ,
sea ice position, global temperature data

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2
Q

list human and natural causes of climate change

A

natural- volcanic eruptions , sun being hotter some years, the earth wobbling towards and away from the sun.

human- factories, cars, cows reared for meat

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3
Q

changes in the earths orbital geomatry

A

every 100,00 years the orbit changes from a cirlce to an oval.
over roughly 40,000 the tilt changes - will less tilt our summers are coolers and winters milder.
as earth spins the axis wobbles. The axis wobbles from one extreme to another.

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4
Q

enhanced greenhouse effect

A

where extra greenhouse gases trap too much of the sun’s energy

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5
Q

name 2 greenhouse gases

A

carbon dioxide , nitrous oxide and methane

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6
Q

comparison of weather to climate

A

weather- atmospheric conditions on a day to day basis
climate-atmospheric conditions as an average over time

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7
Q

info on the quaternary period?

A

started 2.6 million years ago
during this period there has been a general increase in temperatures
mostly colder before this period

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8
Q

sunspots

A

sun spots makes the sun hotter
less= cooler sun

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