1.7 climate change

Question 1

how has climate change positively impacted the sahel?

Answer 1

since 1960, there has been several wet periods allowing productive farmland so there are more crops and more money

Question 2

how has climate change negatively impacted california?

Answer 2

2011-2015 in drought
increased evaporation, reduced precipitation but growing population with higher demand
groundwater levels fell by 30m during the drought

Question 3

what are global patterns caused by?

Answer 3

atmospheric circulation and ocean currents

Question 4

how is climate change affecting El Nino events?

Answer 4

increasing their duration and intensity

Question 5

how often do ENSO events occur?

Answer 5

every 2-7 years

Question 6

what does australia experience as a result of a La Nina event?

Answer 6

severe heavy rainfall leading to flash flooding as a result of low pressure

Question 7

what does south america
experience as a result of a La Nina event?

Answer 7

extreme drought as a result of high pressure

Question 8

what happens to water during a La Nina event?

Answer 8

warm water moved across the pacific ocean from south america to australia

Question 9

what happens to the trade winds during a La Nina event?

Answer 9

they move across the pacific ocean from australia to south america

Question 10

what does australia experience during an El Nino event?

Answer 10

extreme drought as a result of high pressure

Question 11

what does south america experience during an El Nino event?

Answer 11

extreme flooding as a result of low pressure

Question 12

what happens to water during an El Nino event?

Answer 12

wam water moves across the pacific ocean from australia to south america

Question 13

what happens to the trade winds during an El Nino event?

Answer 13

they move across the pacific ocean from south america to australia