Climate change

Question 1

adaptations

cliame change

Answer 1

change agricultural water systmes
positve and negative as planting new crop types in new areas is possible but otheres can have flooding, drought
- alter specis they farm
- se tech to harvest wayter e.g. dams to soncerve soil moisture
- altering location
- improve pest control
- use climate forecasting

Managing water supply
- rain water recyled
- water meteres installed to control usage
- can also be made wose with growing population

Reduce risk from rising sea levels
(predicted to rise between 28-43 cm by the end of the century
- abondon areas with low lying areas that have not alot of economic worth
- build coastal manegmnet
- the thames barrier defenda centeral london needs replacing at 7 billion

Question 2

Tree rings

Answer 2

width indicates how long the season is
thick - long summer, warm
if tehres a contant thickness its liekey that teh climate ididnt cahnge around that time

Question 3

Ice core samples

Answer 3

Gases traped in the ice contain amounts of co2 that can be mesured

Question 4

old piantings/ diaries

Answer 4

e.g. river thames frozen

Question 5

ocean sediments

Answer 5

further down = older
remains of orgainms can give info on past surface temps and levels on o2, o2 isitopes

Question 6

Fossils

Answer 6

createres with spesific requirments
if animals found are diffenet today then climate would likely have chnaged

Question 7

how do volcanoes contribute to ciliamte chnage

Answer 7

when erupts it lets out ash and sulfur dioxide gas
if the ash will rise high enough its will get sucled in by the trade winds forming a blanket stopping sulioghts transmitting through to teh earth, cooling it down

Question 8

effects of climate change

economic

Answer 8

hotter weather in parts of india is liley to greatly reduce the amount of wheat that can be grown by 50%

Question 9

effects of climate change

enviromental

Answer 9

ice caps mealting which is home of polarboears

Question 10

effects of climate change

social

Answer 10

lower crop yield so malnutrition

Question 11

orbital chamges

Answer 11

effects how much insolation earth get
- elliptical orbit
- stretch
- wobble
- tilted at an angle
these changes may have caused glacial perioods

Question 12

Solar Output

Answer 12

isnt constant, doent have large effect

Question 13

temp predicted to rise up by

Answer 13

5 degrees by 2100