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EFFECTS OF GLOBAL WARMING ON THE COASTS

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Only when the last tree has died, the last river poisoned and the last fish caught, will we realize that we cannot eat money By: AADI VAIDYA – PowerPoint PPT presentation

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Title: EFFECTS OF GLOBAL WARMING ON THE COASTS


1
EFFECTS OF GLOBAL WARMING ON THE COASTS
Only when the last tree has died, the last river
poisoned and the last fish caught, will we
realize that we cannot eat money
By AADI VAIDYA SHOBHIT SINGH SHITAL
SHIRSAT PRAJAKT SURVE
2
WHAT IS GLOBAL WARMING?
  • Refers to the long term increase in temperature
    which is global in nature.
  • Disturbs balance between hot and cold
  • areas in the atmosphere.
  • Caused by the increase in GHG(CO2,CH4,N2O),they
    act as a blanket resulting a rise in temperature

3
CONTRIBUTION OF GHGS TOWARDS CLIMATE CHANGE
4
CLIMATE CHANGE AND GLOBAL WARMING
  • Climate should not be confused with weather.
  • Climate change refers to variation in global and
    regional climates over time
  • Changes the climate system as a whole shifting
    the average pattern.
  • Climate change and global warming are co related

5
CAUSES OF CLIMATE CHANGE AND GLOBAL WARMING
  • . Human activities ..main cause
  • Burning of fossil fuels - emit excess GHGs
  • making a thicker blanket of ghgs increasing
    heat
  • Forest destruction
  • Increase in co2
  • Industrial pollution
  • Incorrect waste management
  • Depletion of land and soil

6
IMPACTS
  • Coastal ecosystem
  • Includes mangrooves, coral reefs, sea grass,
    marine life
  • Vulnerable to the effects of frequency changes in
    rainfall and level rise
  • May be damaged by warmer sea temperature
  • disasters
  • Can cause high tides, storms, floods, seismic sea
    waves(tsunami)
  • 46 mn people on an average are affected
  • economic impacts
  • Damages economic sectors

7
  • many coastal communities are affected
  • increase in global warming is leading to the
    increase in various infections
  • disruption of sanitation, drainage, sewage
    disposal, system
  • psychological and other illnesses
  • transmission of diseases and breeding of insects
  • Many industries set up at the coastal regions
    can be harmed
  • in turn affecting the Indian economy

8
THE INDIAN SITUATION
  • Mean temperature increase of 3 to 5 degree C by
    end of century more pronounced in north
  • 20 rise in Indian monsoon
  • More extreme extremes especially over west
    coast of India and west central India
  • Reduced crop production due to increased
    temperature and higher CO2 content
  • An increase in cyclones in Bay of Bengal
  • Flooding of low lying areas producing climate
    refugees

9
INDIAN COASTLINE
  • Total length from Sunder bans in West Bengal till
    the Rann of Kutch in gujarat-5700km.
  • Lakshadweep, Andaman and Nicobar group of islands
    constitute-1810 km
  • few major coastal ports
  • Mumbai, Chennai, Vishakhapatnam, Kolkata,
    Kochi and Goa
  • Western coastline has a continental shelf having
    an area of 0.13mn sq. km.

10
CRZ
  • Coastal regulation zone is the boundary from the
    high tide line up to 500m in the land -ward side.
  • Four categories
  • CRZ I Ecologically important areas like
    national parks
  • CRZ II Already exploited to some extent like
    drainage etc.
  • CRZ III Undisturbed areas not included under I
    II.
  • CRZ IV Coastal areas in Andamans, Lakshadweep
    and other small islands.

11
THE GREATEST THREAT- SEA LEVEL RISE
  • Inundation of coastal colonies
  • India is one of the 28 countries endagered from
    sea level rise
  • Total area of 5763 sqkm and 4.6 of the coastal
    population would be affected
  • Most vulnerable areas-gujarat,mumbai,south
    kerala,lakshadweep islands

12
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13
DISPLACEMENT OF COMMUNITIES
  • Facts
  • Reports say-sea level rise between 15 to 38 cm
    can affect tens of thousands of people at the
    coasts
  • A meter rise today would displace 7 million
    people
  • Sudhir Chellarajan(IIT professor)has determined
    that by the end of the century 12 million people
    would be displaced in west Bengal
  • The problem of coastal refugees would start
    irking the governments soon their
    rehabilitation, compensation and effect on
    economy..

14
BYE BYE BEACHES.
  • Threatning to chew up beaches of Vishakhapatnam.
    In the past month it has gouged 75 metre of the
    section through erosion
  • Puris beaches are slowly disintegrating
  • Climatic factors and man made development is
    causing heavy toll on the beaches of Goa. Water
    has started to enter close to solid ground.would
    affect tourism and local coastal communities

15
GLOBAL WARMING CAUSING CHANGE IN MONSOONS
  • Changes in the monsoon pattern in India are
    expected to result in severe floods, droughts
  • Scientists predict a 3-5 degree rise in
    temperature causing a 20 increase in summer
    rainfall.
  • A vast population depends upon rainfall for their
    livelihood
  • Changes in water cycle can cause diseases such as
    malaria, cholera, hepatitis,etc.

16
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17
SEA WATER INTRUSION
  • The vulnerability area increases with every 0.5 m
    rise in sea level.
  • Maximum near the creeks and minimum along main
    coast.
  • Irrigated agriculture, coastal activities ,
    tourism at risk
  • Saline water may make land unfit for agriculture
  • Two islands already vanished from Sunder bans
    displacing 7000 people. Two more islands at risk.

18
Increased Sea Level, Increased Floods
19
MUMBAI
  • Frequent floods and sea water intrusion has
    affected structural stability of high rise
    buildings
  • About 40 of the population in Mumbai vulnerable
    to sea water intrusion due increased water level
  • Low lying areas of Byculla to Parel and Dadar
    which had mill areas given to industries
  • Huge construction have destroyed their capability
    of acting as water sinks during heavy rains
  • Again dislocation of people

20
VOICE OF FISHERFOLK
  • EARLIER WE USED TO OFFER COCONUTS TO THE GODS OF
    THE SEA AND THEY USED TO LET US FISH PEACEFULLY.
    THOSE DAYS ARE GONE..
  • THIS IS THE VOICE OF THE FISHERFOLK
  • HAVE NO FAITH ON THE GOVERNMENT AND OTHER
    AGENCIES
  • MANY TIMES THEY HAVE ISSUED WARNINGS,BUT NOTHING
    EVER HAPPENS.BUT THEY DONT REALISE THAT OUR
    LIVELIHOOD IS AT STAKE
  • WE DO NOT DEMAND TO SHUT DOWN INDUSTRIESBUT TO
    GIVE US ATLEAST OUR SHARE

21
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22
COASTAL REFUGEES
  • Special type of climate refugees basically
    inhabitants of the coasts
  • Displaced due to rise in sea level and inundation
    of their villages
  • Or due to sea water intrusion making land saline
    and unavailable for agriculture
  • 7000 people already coastal refugees in Sunder
    bans and 70,000 looming under large threat
  • No proper care hence can lead to dissent among
    people

23
C L I M A T E R E F U G E E S
24
Story-The end of world in Versova
  • Over a hundred shanties were swept away last
    year July, tides rose to 5.05 m.
  • 13 lakh people in a state of risk
  • Fresh water supply has drastically reduced
  • Improper drainage system
  • the IPCC (intergovernmental panel on climate
    change)has declared Versova as danger zone

25
GOVERNMENT ACTIONS
  • A metre increase in sea level can affect 13 lakh
    people
  • Government has sanctioned Mr. Rajendra.K.Pachauri
    along with his committee to do a probe study on
    the coastal regions of Maharastra (worth 98
    lakhs)
  • They have collaborated with MOHC(met office
    Headley centre)
  • Different agencies may differ but what is of main
    concern is the impacts

26
OPTING FOR SUSTAINABLE DEVELOPMENT
  • Sustainable development means developing in such
    a way that our resources are utilised in the best
    possible way and can be replenished for future
    generations
  • Now has become a global concept
  • Many countries have recognised it and are
    adopting it
  • It is necessary for all
  • This would directly affect the lives of the people

27
INDIA WITH SUSTAINABLE DEVELOPMENT
  • In India current plans are to tally contradictory
    to sustainable development
  • Growth in power, transport, energy would alone
    contribute 40 of GHG emissions
  • The planning commission and the government have
    to bind sustainable development and economic
    growth plans in such a way that they dont
    conflict each other

28
WHAT IS TO BE DONE?
  • Despite of have to make a choice and our future
    will depend on that
  • We cannot solely rely on government agencies,
    scientists and economists to act
  • While coastal communities have a low carbon
    footprint than us, we can too reduce ours by
    adopting various methods of alternative sources
    of energy
  • We should change our thinking of using exotic
    products, which have created a mindset of a
    higher standard of living
  • We should realise that saving resources would in
    turn be the best possible way to live

29
CAN INDIA SHOW THE WAY ?
  • Developed countries worst polluters
  • India and China still developing and can build in
    an environmental friendly way
  • Public Transport, low carbon emissions etc.
    should be aimed
  • Actively supported the cause of environment in
    Copenhagen Summit
  • Basic professions like agriculture and mining can
    easily reduce carbon emissions

30
A GENDER AND LIVELIHOOD BASED APPROACH
  • Gender refers to social roles and relations
    between men and women
  • Use participatory approaches to involve all
    members of the community in planning
  • Enhance local capacity to adapt
  • Introduce tools in a locally sensitive way
  • Draw on local knowledge
  • Understand local gender roles

31
CHANGE BEGINS WITH ME
  • Can not solely depend on government agencies,
    research and scientists
  • Underlying point remains the same Reduce your
    carbon footprint.
  • Use more non conventional sources of energy -
    sun, wind etc.
  • Coastal Management should be based on the region
    decentralized
  • Decision making should be flexible

32
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33
BIBLIOGRAPHY
  • Websites
  • www.infochangeindia.org
  • www.wikipedia.com/globalwarming
  • Books and magazine
  • The Coast isnt Clear Voices from Mumbais
    Margins
  • Mumbai Mirror 28th April, 2009
  • Resource Person
  • Mr. John Centre for Education and
    Documentation, Colaba
  • Ms. Jacintha - Centre for Education and
    Documentation, Colaba

34
THANK YOU.
It seems to me that we all look at nature too
much, and live with her too little
- Oscar
Wilde
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