As- Easter Revision Global Hazards

8/9/2019 As- Easter Revision Global Hazards

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Global Hazards

What are the main types of

physical risks facing he world

and how big a threat are they?


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Areas at risk


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Key terms

Asthenosphere - the lower layer of the crust

Benioff zone- is a deep active seismic area in asubduction zone .

Desertification

Drought

Earthquake- destructive, constructive,conservative

Epicentre Focus

Flood- discharge, recurrence interval, floodfrequency curve


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Key terms

Hurricane

Typhoon

Cyclones

Lahar

Lava Active, dormant, extinct

Caldera


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Key terms

Liquefaction

Magma

Richter scale/Mercalli scale/ MomentMagnitude

Seismograph- instrument measures p, s andl waves

Strom surge Tornado

Tsunami

Volcanic plume


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Disaster risk equation

R= HxV

C

R= Risk of disaster

H= hazards

V= Vulnerability C= Capacity to cope decreases


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Global warming

Assessing the risk of Global

warming

Watch the DVD Inconvenient

Truth- Al Gore

Global warming swindle

Gives you a perspective from

both sides.


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How and why are natural hazards now

becoming seen as an increasing

global threat?

Disasters of the Week: Archives 2005

BBC NEWS | World | Europe | Italy rescuerscomb quake rubble

This website gives you statistics of thefrequency of the top six global naturalhazards

http://www.time.com/time/specials/2007/to

p10/article/0,30583,1686204_1686252_1690260,00.html

List them


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Human and natural activities causing

increasing disaster scenarios

We will look at storms, floods

and population change

YouTube - Increase of natural

disasters and famines


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The increase of natural disasters-

Physical and Human factors

Global warming

El- Nino and La Nina

YouTube - Ocean &A

tmosphere - El Nino,Walker Circulation

YouTube Deforestation

YouTube - poverty and world hunger

YouTube - Immigration Numbers Rise --

Environment Suffers YouTube - China: Changing horizons,

changing diet


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Why are some places more hazardous

and disaster prone than others?

You need to explore the local area toassess the risks to natural hazards such asflooding and global warming

Chatham vs. Dover Do primary data collections and secondary

data research on the internet. Usemaps(past/present)

Get data from the local authority

Environmental assessments Use a world map- explore plate boundaries

YouTube - Plate Tectonics Explained


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Disaster hotspots

http://www.worldmapper.org/pos

ters/worldmapper_map247_ver5.

pdf


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Case studies to learn

California coast (pages 31-32)

Phillipines- a vulnerable

location (pages33 -34)

Learn these case studies.


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Global warming- short term

phenomenon or part of a longer

term climate change?

Longer term- pollen analysis,ice

cores, past glacial/sea level change

Medium term- historical records, treerings, retreating glaciers

Short term- scientific research from

weather, ocean, polar ice and

ecosystem change


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Is climate change unprecedented or is

it caused by human beings?

Watch the DVD Inconvenient

Truth- Al Gore

Global warming swindle- video

These resources will allow you

to make up your own mind

about Climate change.


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Case studies

You need to learn about

environmental and ecological

impacts on the Arctic region

The complexities of economic

impacts across the African

continent and how it could leadto disasters for poor people


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Africa- the economic

impact on the poor Pages 45-46

Why is this region susceptible to disaster?

What climate change is occurring on thiscontinent?

Give reasons

How does this impact on food production?

What is arable land?

What is water stress/

How will water stress impact on the African

community by 2020?

What indirect impacts are there?

List three examples and explain your answer.


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The Artic

YouTube - NORTH POLE ICE

CRACKING (global warming,

Arctic, climate)

YouTube - Ice cap in north pole

is gone before 2027


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You need to

How does sea level rise impact onthe South Sea Islands?

BBC News | Sci/Tech | Islandsdisappear under rising seas

Or Bangladesh? BBC News Player

Research the different scenarios andmodels in predicting future trends in

rising sea levels Explore the concept of a Tipping

Point


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Strategies for coping

with Climate Change You need to weigh up

adaptation strategies using a

range of examples of each

Kyoto agreement 1995

Agenda 21

Act Local , Think Global- what

are we doing in the UK?


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How do we tackle the global

challenges of increasing risk and

vulnerability in a more hazardous

world?

How is the UK trying to alleviate

the problems to make the world

more sustainable?

Plant a tree

Innovation

Alternatives to coal and oil

Reducing our carbon footprint

Alternatives to fossil fuels

Documents

As- Easter Revision Global Hazards