As- Easter Revision Global Hazards
-
Upload
ifeoluwapo-koleowo -
Category
Documents
-
view
220 -
download
0
Transcript of As- Easter Revision Global Hazards
-
8/9/2019 As- Easter Revision Global Hazards
1/21
Global Hazards
What are the main types of
physical risks facing he world
and how big a threat are they?
-
8/9/2019 As- Easter Revision Global Hazards
2/21
Areas at risk
-
8/9/2019 As- Easter Revision Global Hazards
3/21
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
-
8/9/2019 As- Easter Revision Global Hazards
4/21
Key terms
Hurricane
Typhoon
Cyclones
Lahar
Lava Active, dormant, extinct
Caldera
-
8/9/2019 As- Easter Revision Global Hazards
5/21
Key terms
Liquefaction
Magma
Richter scale/Mercalli scale/ MomentMagnitude
Seismograph- instrument measures p, s andl waves
Strom surge Tornado
Tsunami
Volcanic plume
-
8/9/2019 As- Easter Revision Global Hazards
6/21
Disaster risk equation
R= HxV
C
R= Risk of disaster
H= hazards
V= Vulnerability C= Capacity to cope decreases
-
8/9/2019 As- Easter Revision Global Hazards
7/21
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.
-
8/9/2019 As- Easter Revision Global Hazards
8/21
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
-
8/9/2019 As- Easter Revision Global Hazards
9/21
Human and natural activities causing
increasing disaster scenarios
We will look at storms, floods
and population change
YouTube - Increase of natural
disasters and famines
-
8/9/2019 As- Easter Revision Global Hazards
10/21
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
-
8/9/2019 As- Easter Revision Global Hazards
11/21
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
-
8/9/2019 As- Easter Revision Global Hazards
12/21
Disaster hotspots
http://www.worldmapper.org/pos
ters/worldmapper_map247_ver5.
pdf
-
8/9/2019 As- Easter Revision Global Hazards
13/21
Case studies to learn
California coast (pages 31-32)
Phillipines- a vulnerable
location (pages33 -34)
Learn these case studies.
-
8/9/2019 As- Easter Revision Global Hazards
14/21
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
-
8/9/2019 As- Easter Revision Global Hazards
15/21
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.
-
8/9/2019 As- Easter Revision Global Hazards
16/21
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
-
8/9/2019 As- Easter Revision Global Hazards
17/21
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.
-
8/9/2019 As- Easter Revision Global Hazards
18/21
The Artic
YouTube - NORTH POLE ICE
CRACKING (global warming,
Arctic, climate)
YouTube - Ice cap in north pole
is gone before 2027
-
8/9/2019 As- Easter Revision Global Hazards
19/21
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
-
8/9/2019 As- Easter Revision Global Hazards
20/21
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?
-
8/9/2019 As- Easter Revision Global Hazards
21/21
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