Changing Climate
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- Created by: zoeeshirra
- Created on: 14-05-17 15:51
What is the ice age?
An extended period of time when it is cold
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What is Quaternary?
the last 2.6 million years of geological time
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What is the glacial period?
a period of time lasting between 80,000- 100,000 years
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What is the interglacial period?
a warm period of time lasting between 10,000- 15,000 years
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What is the milankovitch cycle?
the small change in the earths orbit about once every 100,000 years
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How do volcanoes effect the earths temperature?
By releasing ash into the atmosphere and blocking the sun and therefore cooling the earth
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What are some natural causes of climate change?
Milankovitch cycles, sunspots, volcanic eruptions , asteroid collisions, ocean current changes
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What are sunspots?
A burst of energy from the sun that sends more heat and energy
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How do asteroid collisions affect the earths temp?
They can cause cooling because the material blocks out the sun
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What was the little ice age?
a colder period in northern Europe starting in the 15th century and lasting to the mid 19th century
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What were the impacts of the little ice age?
crops didn't grow well so people went hungry, winters were very cold and summers were short
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Why didn't crops grow well during the little ice age?
the ground was frozen so nothing could be planted or grown in it
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How was the little ice age thought to have been caused?
most likely to be natural changes. Not enough people or industry to cause it. Most likely fewer sunspots or volcanic ash in the atmosphere
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What had evolved during the little ice age?
Mega fauna big animals typically weighed over 40kg such as woolly mammoth, giant beaver and sabre toothed tiger
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What happened to the mega fauna after the little ice age?
they couldn't adapt to the climate becoming warmer and because of this became extinct. Also human hunting is thought to be a factor
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What do most people agree is causing climate change?
Humans, through the production of various greenhouse gasses
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What are the current levels of carbon dioxide and methane believed to be at?
carbon dioxide is thought to be at its highest for over 650,000 years and methane at its highest for at least 900,000
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Why is more carbon dioxide produced as a country develops?
there is more industry, more energy is needed so more fossil fuels are burnt, transport increased so more vehicles consuming petrol/diesel
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What is the UKs climate?
wet and mild
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What factors impact the UKs climate?
latitude affects how much sun the UK gets and how strong it is during different seasons, North Atlantic current keeps UK warmer, air masses bring weather conditions with them, winds from the Atlantic ocean pick up moisture from the sea and bring rain
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What are some of the possible changes to the UK climate?
average temp rise, less predictable rainfall and drier summers, changing seasons
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How might the seasons change in the UK?
possibly longer summers and more extreme cold in winters
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Why might the UK climate change?
North Atlantic current is likely to move and reduce sea temp and bring less rain, more air masses from the north bringing more storms and extreme cold
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What are some environmental impacts of climate change in the UK?
sea level rise, more severe storms, longer summer droughts, changes to fishing industries, ecosystems could change, warmer temps could encourage diseases like malaria
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What will a rising sea level mean for the UK?
loss of coastal land and increased coastal eroison
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How would ecosystems change?
some plant and animal species move into new areas and new (invasive) species could emerge
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What are some economic impacts of UK climate change?
damage to cities such as London would be very expensive and disruptive, farming could improve, tourism, flood protection
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How could farmers possibly benefit from climate change?
they can grow different crops and enjoy longer growing seasons
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How could UK climate change affect tourism?
if it is warmer in the UK people may spend more on holidays here rather than going abroad
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How does climate change affect the Scottish skiing industry?
very badly, the temp is warmer so the snow melts so there is no where to ski and there isn't snow all ear round so ski businesses fail as well as the other businesses that rely on the industry as it will disappear if the snow does
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Other cards in this set
Card 2
Front
What is Quaternary?
Back
the last 2.6 million years of geological time
Card 3
Front
What is the glacial period?
Back
Card 4
Front
What is the interglacial period?
Back
Card 5
Front
What is the milankovitch cycle?
Back
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