3.1.1.4 Climate Change

Question 1

what could more energy in the atmosphere lead to

Answer 1

more intense storms

Question 2

what could atmospheric circulation being affected lead to

Answer 2

floods to dry areas and heatwaves to cool regions

Question 3

what is a jet stream

Answer 3

fast flowing current of air

Question 4

cool periods

Answer 4

glacials

Question 5

warmer periods

Answer 5

interglacials

Question 6

three physical causes of climate change

Answer 6

orbital, solar activity, volcanic activity

Question 7

orbital changes

Answer 7

Axial tilt- causes day and night
Precession-natural wobble
Eccenticity cycle- as the earth orbits the sun can change from circular to elliptical

Question 8

solar activity

Answer 8

sunspot activity
maximum- more heat is given off
minimum- less heat given off 
a dark spot on the surface of the sun 
increase from the minimum to maximum and back every 11 years

Question 9

volcanic activity

Answer 9

violent eruptions blast huge quantities of ash and gas back into the atmosphere
volcanic ash can block the sun, reducing the earth’s temperatures

Question 10

human causes of climate change

Answer 10

greenhouse gases

Question 11

three greenhouse gases

Answer 11

co2, methane, nitrous oxide

Question 12

co2 sources

Answer 12

burning fossil fuels
deforestation
car exhausts

Question 13

methane sources

Answer 13

livestock
rice farming
landfill sites

Question 14

nitrous oxide sources

Answer 14

sewage treatments
car exhausts
power stations

Question 15

evidence of climate change bird migration

Answer 15

65 species of birds nest on average 9 days earlier than in the 1970s

Question 16

evidence of climate change glaciers

Answer 16

glaciers are shrinking/retreating

some will completely disappear by 2035

Question 17

evidence of climate change sea level

Answer 17

risen 15cm in 100 years

Question 18

adaptation

Answer 18

make changes to prepare for the effects

Question 19

mitigation

Answer 19

reducing the severity and seriousness of climate change

Question 20

examples of mitigation strategies

Answer 20

alternative energy, afforestation, international agreements

Question 21

examples of adaptation strategies

Answer 21

managing water supply, reducing the risk from sea level rise

Question 22

alternative energy sources

Answer 22

hydroelectricity, nuclear, solar/wind/tidal
reduce co2 emissions
UK aim- 15% of sources to be renewable by 2020

Question 23

planting trees

Answer 23

trees act as a carbon sink

they will benefit as they remove any co2 from the atmosphere

Question 24

international agreements

Answer 24

2015 Paris:
195 countries
keep global temp increase below 2 degrees

Question 25

managing water supply

Answer 25

climate change causes more severe and frequent droughts plant shade trees to protect seedlings from the sun educating farmers drought resistant crops

Question 26

reducing the risk from sea-level rise

Answer 26

Bangladesh and india will flood relocating entire populations building houses on stilts construction of sea walls