Coastal Flooding Case Studies

Question 1

What percentage of the Maldives would be lost from a 50cm sea level rise?

Answer 1

77%

Question 2

If 77% of the Maldives was lost what proportion of the economic activity would be lost?

Answer 2

40% (tourism activity)

Question 3

What income is the Maldives?

Answer 3

Middle income

Question 4

Give some context data on the Maldives.

Answer 4

3400 people over 1200 islands with the highest point just 2.3 meters above sea level

Question 5

What is an example of delta subsidence and give some data on it.

Answer 5

50 large islands in the Ganges Brahmaputra delta (Bangladesh) subsided 1.5 meters since 1960 due to all of studied reasons including flood defences stopping fresh sediment

Question 6

What would a 40 cm sea level rise do to Bangladesh?

Answer 6

Submerge 11% creating 7-10 million refugees

Question 7

How much does a 1km belt of mangroves do to a storm surge?

Answer 7

Reduces its height by 0.5 meters

Question 8

What proportion of mangrove forests have been removed and why?

Answer 8

50% to make way for shrimp farms + tourist beaches

Question 9

What proportion of Bangladesh’s sundarbans have been removed?

Answer 9

71%

Question 10

What had the removal of Bangladesh’s mangroves led to?

Answer 10

Increased erosion rates to 200 meters per year

Question 11

How big was the storm Xavier storm surge?

Answer 11

3meters

Question 12

How many homes were flooded during storm Xavier?

Answer 12

1400

Question 13

How many homes were protected by the Thames barrier during storm Xavier?

Answer 13

800000 homes

Question 14

How big was the cyclone sidr storm surge?

Answer 14

6 meters

Question 15

How many homes were destroyed during cyclone sidr?

Answer 15

1.6 million

Question 16

How many deaths did cyclone sidr cause ?

Answer 16

15000

Question 17

What future sea level rise is predicted for Australia? ( by the IPCC)

Answer 17

28-98cm by 2100

Question 18

What social effects would a 1 meter sea level rise have in Australia?

Answer 18

Loss of 75 hospitals
44 water + sewage plants
258 emergency service stations

Question 19

What economic effect would a 1 meter SLR have in australia?

Answer 19

£72 billion residential property
£67 billion road + rail infrastructure

Question 20

What environmental effect would a 1m SLR have in Australia?

Answer 20

Estimated loss of 50% of Great Barrier Reef by 2050 due to coral bleaching

Question 21

What sea level rise does the IPCC estimate for the Philippines?

Answer 21

60cm to 1 meter by 2100

Question 22

What are the social effects of a 1 meter SLR on the Philippines?

Answer 22

2.3 million people affected with 62%of Manila

Question 23

What would be the tourism effect of a 1 meter sea level rise in the Philippines?

Answer 23

123000m squared of san Fernandinho beach lost estimated loss in revenue of 95000 per year

Question 24

What % of tacloban was destroyed by typhoon Haiyan and how many deaths did the storm cause?

Answer 24

90% and 6300 deaths+ 6 million didplaced

Question 25

A 1m sea level rise in the Philippines would have what effect on fishing?

Answer 25

Coral bleaching reducing fish stocks, industry loss of £168000 per year, income cannot be replaced in formal sector

Question 26

What has Chittagong Bangladesh done to reduce risk for coastal communities ( from storms + SLR)?

Answer 26

2012- coastal climate resilient infrastructure project
Upgrades to 25 cyclone shelters - can serve as schools
Improved water + sewage infrastructure
Embankments lined with halophytic vegetation - local people oversee projects

Question 27

What is the Mangroves for the future initiative doing in Bangladesh and the Maldives?

Answer 27

400ha of mangroves reestablished at satkhira Bangladesh
Project focussed on ecosystem restoration and livelihood diversification for sudtainable coastal management

Question 28

What has the IPCC predicted for sea level rise?

Answer 28

Predicted with a high degree of confidence sea levels will rise 18-59 cm by 2100

Question 29

What has the IPCC predicted about tropical storms

Answer 29

Predicted with a low free of confidence that frequency will remain unchanged but tropical storms will increase in strength by 2-11% by 2100