GEOGRAPHY UNIT 1 TOPIC 2

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  • Created by: stelly_tn
  • Created on: 13-03-17 17:12
Ice Age is... - U1 T2
An extended period of time when its cold
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Quaternary is... - U1 T2
The last 2.6 million years of geological time
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Glacial Period is... - U1 T2
A period of time lasting between 80,000-100,000 years
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Inter-glacial Period is... - U1 T2
A warm period of time lasting between 10,000-15,000 years
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Natural Causes of Climate Change - U1 T2
Ocean current changes cause cooling, Earth's orbit changes every 100,000 years, energy radiated from sun changes every 11 year cycle, volcanic eruptions pump ash into atmosphere
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The Mini Ice Age is... - U1 T2
Colder period during 15th century to mid 19th century in northern Europe
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Impacts of Mini Ice Age On Humans - U1 T2
Crops did not grow well which meant more hungry people, winters were very cold and summers were short
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Causes of the Mini Ice Age - U1 T2
Fewer sunspots, volcanic ash in the atmosphere
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Evidence of the Mini Ice Age - U1 T2
Diaries, newspapers, paintings, tree rings (are thinner during cold years)
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Megafauna and extinction - U1 T2
Big animals weighing over 40kg, after Ice Age temperature rose and they couldn't adapt, also hunted by humans so are extinct
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The evidence for present/future climate change - U1 T2
Rise in greenhouse gases such as Carbon Dioxide, CO2 at their highest, methane at their highest, methane 21 times more potent than CO2
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More Carbon Dioxide is produced because... - U1 T2
There is more industry, more energy needed, more fossil fuels burned, transport increases
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Impacts on the UK's climate (MEDC) - U1 T2
Latitude effects how much sun the UK gets and how strong it is, North Atlantic current keeps UK Warmer than other place of the same latitude, previaling winds from Atlantic Ocean pick up moisture and bring rain
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Possible changes to the UK's climate (MEDC) - U1 T2
Average temperature rise, less predictable rainfall patterns, drier summers, long summers and extremely cold winters
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Why changes may occur to the UK's climate (MEDC) - U1 T2
North Atlantic current likely to move reduce rainfall, more air masses bringing storms and more extreme cold
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Environmental impacts from climate change in the UK (MEDC) - U1 T2
Sea levels rise therefore increased erosion, severe storms and longer summer droughts, changes to fishing industries, ecosystems change migrations, warmer temperature encourage disease
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Economic impacts from climate change in the UK (MEDC) - U1 T2
Damage from flooding would be expensive, warmer weather mean farmers grow different crops and longer growing seasons,
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Benefits of a warmer UK (MEDC) - U1 T2
Heating costs lower, more UK holidays, more crop sales
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If CO2 concentrations increase... - U1 T2
Temperatures rise by 6 degrees, loss of homes from rise in sea level, extreme weather like droughts and storms leading to faminie and disasters, animal/plant not adaptinf
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If CO2 concentrations decrease... - U1 T2
Temperature rise by only 2 degrees, sea level wont rise much, more storms and hurricanes, some species become extinct
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Climate change in Bangladesh (LEDC) - U1 T2
A low-lying country that i suffering from coastal and river flooding, vulnerable to climate change
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Environmental impacts of climate change in Bangladesh (LEDC) - U1 T2
Severe flooding becomes worse, tropical storms more common and cause destruction, dry season longer and more droughts
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Economic impacts of climate change in Bangladesh (LEDC) - U1 T2
Small rise in sea level impact argicultral output, floods damage homes and disrupt lives and economy, shrimp farming is important but damaged, increase water-borne disease
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Greenhouse effect is... - U1 T2
Gases trapping heat in the Earth's atmosphere
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LEDC's and MEDC's in greenhouse emissions - U1 T2
LEDCs want to develop and to catch up with MEDCs and this normally means using more energy and burning more fuel. So global warming could threaten development.
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Difference between greenhouse and enhanced greenhouse effects
The greenhouse effect is an important part of the Earth's climate without which the planet would be a far colder place. The effect is natural and not new. The enhanced is additional heat retained due to human activity in emissions
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The Sunspot theory is... - U1 T2
Sunspots are regions on the photosphere of the sun that appear dark because they are cooler than the surrounding area.
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The orbital theory is... - U1 T2
Changes in the way the earth orbits the sun from circuar to ellipse alters the amount of sunlight the earth receives
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How ecosystems affected by climate change in the past - U1 T2
Asteroid hits and volcano erupts, dust and gas, blocks sun, plants dont grow, animals/dinosaurs dont eat
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Ice sheets are useful because... - U1 T2
Each layer is one year of snowfall trapped in are air bubbles
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Thermal expansion is... - U1 T2
The sea expanding as it warms up, it causes sea levels to rise.
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Other cards in this set

Card 2

Front

Quaternary is... - U1 T2

Back

The last 2.6 million years of geological time

Card 3

Front

Glacial Period is... - U1 T2

Back

Preview of the front of card 3

Card 4

Front

Inter-glacial Period is... - U1 T2

Back

Preview of the front of card 4

Card 5

Front

Natural Causes of Climate Change - U1 T2

Back

Preview of the front of card 5
View more cards

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