SlideShare uma empresa Scribd logo
1 de 20
Presented By:-
  Elen Barla
M.Sc 2nd semester
Roll no-11ES01
CONTENTS
•Introduction
•Carbon cycle
•What is ocean acidification?
•Chemistry of ocean acidification
•Impacts of ocean acidification
•Potential effects on ecosystem
•Facts about Ocean Acidification
•What can we do about it?
•conclusion
•Oceans cover more than 70% of the earth’s
surface.
•Burning of fossil fuels and deforestation have
increased the amount of carbon dioxide emitted
to the atmosphere-and the amount that
dissolve into the ocean.
•Massive amount of carbon dioxide into the sea
-altering water chemistry.
-causing ocean to become more acidic.
-affecting life-cycle of marine
organism, particularly at the lower end of food
chain.
•Carbon dioxide is a critical part of earth’s atmosphere.
•It maintain a natural balance of carbon in the atmosphere , land
and ocean.
•The ocean absorb carbon in two ways-physical and biological.
What is Ocean Acidification ?
Since the beginning of industrial era , emission of carbon
dioxide have increased.
Exceeding the capacity of the carbon cycle to maintain an
equilibrium between the atmosphere and ocean.
The absorption of carbon dioxide is fundamentally changing
the chemistry of the ocean by triggering reactions that make sea
water more acidic , a phenomenon called Ocean acidification.
Definition:-
“Ocean Acidification is a term used to describe the
changes in the chemistry of the earth’s ocean ie
ongoing decrease in the pH and increase in acidity ,
caused by the uptake of anthropogenic carbon dioxide
from the atmosphere”
CHEMISTRY OF OCEAN ACIDIFICATION
IMPACTS OF OCEAN ACIDIFICATION
POTENTIAL EFFECTS ON ECOSYSTEMS
    Specific effects of ocean acidification to a variety of
ocean ecosystem , around the globe.

•THE OPEN OCEAN ECOSYSTEM:
Based on plankton , which serves as the foundation of
the marine food chain.
Planktonic species including coccolithophores ,
foraminifera , and pteropods need carbonate ions to
build their shells.
If ocean acidification increases ,
Carbonate based planktonic species may decline.
A range of species including fish , seals , whales could
lose their preferred food.
                                       Cont……
Photos projected for the year 2100 shows pteropod’s shell slowly dissolves after 45 days
when placed in sea water with low pH and carbonate levels.
POLAR ECOSYSTEM
 •The polar waters of Arctic and Southern oceans harbor many
 protected and endangered marine mammals.
 •Carbon Dioxide dissolve more readily in cold water , acidifying
 the waters of polar regions faster than in lower latitudes.
 •If carbon dioxide continue to increase , by the year 2050 , the
 surface waters of southern ocean will become corrosive to some
 type of carbonate structure.

TROPICAL CORAL REEFS
 • In the Natural world , corals must rapidly grow to outpace
 predation by fish and other organisms and to compete for space
 with algae and sea-grasses.
 •Ocean Acidification ,prevents reef building corals from growing
 fast enough to escape predation and competition and also
 contribute to coral bleaching.                      Cont………
Coral bleaching
DEEP WATER CORAL REEFS
•Corals in the deep sea create habitat for many
species of fish .
•Ocean Acidification in deeper water reduces
 calcification and decrease the rate of growth
  of deep water corals.
Growth and skeletal integrity of scleractinian corals and coralline algae that are likely to be
compromised by ocean acidification.
FACTS ABOUT OCEAN ACIDIFICATION

•World’s oceans are becoming acidic at faster rate,
 threatening disaster for marine life and food
supplies across globe .
• The carbon dioxide in the water has caused the pH of
surface oceans to fall by 0.1 units –projected to fall further
0.3-0.4 units.
•Currently , the ocean absorbs about a third of
  human-created carbon dioxide emission , roughly
  22 million tons a day.
•Acidity has increased 30% and its effect is irreversible.

                                              CONT……
•If carbon dioxide emission continue unchecked-key
parts of the marine environment that are essential for
fish-such as Coral reefs , the Algae and plankton will be
severely affected , leading to the extinction of some
species by 2050.
•Current rate of acidification -making difficult for
species and habitats to adapt.
•If atmospheric carbon dioxide can be stabilized at
450ppm, only 8% of existing tropical and sub-tropical
coral reefs will still be in the waters of right pH level to
support their growth.
What can we do about it ?
•Combating Acidification
 requires reducing carbon dioxide emission
and improving the health of the ocean.
Creating marine protected areas and
stopping destructive fishing practices.
 Addition of Alkali to the Oceans.
Adding of lime stone carbonate material.
Plantation of trees.
Green belt around the industries.
Ocean Acidification
CONCLUSION
•Due to ,Ocean Acidification , the oceans’
capacity as carbon store house is diminishing.
• If nothing is done to help curb Ocean
Acidification , its negative impact may be felt
on the marine environment , local
communities , and all the way up through the
global economy..
“This is not something that’s off in the future.
This is not something for our children’s
children. It’s happening now.”
– Dr. Christopher Sabine
Thank You

Mais conteúdo relacionado

Mais procurados

Carbon cycle in the ocean discussion
Carbon cycle in the ocean discussionCarbon cycle in the ocean discussion
Carbon cycle in the ocean discussionLoretta Roberson
 
composition of seawater
composition of seawatercomposition of seawater
composition of seawaterPramoda Raj
 
Ocean acidification
Ocean acidificationOcean acidification
Ocean acidificationArnab Ghosh
 
Water pollution, types
Water pollution, typesWater pollution, types
Water pollution, typesUsman Khawaja
 
Marine pollution
Marine pollutionMarine pollution
Marine pollutionArun kumar
 
Major and minor components of seawater
Major and minor components of seawaterMajor and minor components of seawater
Major and minor components of seawaterUniversity of Mumbai
 
Coastal pollution and management
Coastal pollution and managementCoastal pollution and management
Coastal pollution and managementVishal Chaudhari
 
Primary production in aquaculture
Primary production in aquaculturePrimary production in aquaculture
Primary production in aquacultureAkhila S
 
Marine pollution
Marine pollutionMarine pollution
Marine pollutionPramoda Raj
 

Mais procurados (20)

Ocean Acidification
Ocean AcidificationOcean Acidification
Ocean Acidification
 
Marine resources
Marine  resourcesMarine  resources
Marine resources
 
Seawater and its properties
Seawater and its propertiesSeawater and its properties
Seawater and its properties
 
Carbon cycle in the ocean discussion
Carbon cycle in the ocean discussionCarbon cycle in the ocean discussion
Carbon cycle in the ocean discussion
 
Ocean Acidification Summary for Policymakers (2013)
Ocean Acidification Summary for Policymakers (2013)Ocean Acidification Summary for Policymakers (2013)
Ocean Acidification Summary for Policymakers (2013)
 
composition of seawater
composition of seawatercomposition of seawater
composition of seawater
 
Ocean acidification
Ocean acidificationOcean acidification
Ocean acidification
 
Bioaccumulation
BioaccumulationBioaccumulation
Bioaccumulation
 
Carbon Cycle in Oceanic Environment by Syekat
Carbon Cycle in Oceanic Environment  by SyekatCarbon Cycle in Oceanic Environment  by Syekat
Carbon Cycle in Oceanic Environment by Syekat
 
Ocean acidification
Ocean acidificationOcean acidification
Ocean acidification
 
2 pollution (heavy metals)w
2 pollution (heavy metals)w2 pollution (heavy metals)w
2 pollution (heavy metals)w
 
Water pollution, types
Water pollution, typesWater pollution, types
Water pollution, types
 
The effects of global warming on the marine
The effects of global warming on the marineThe effects of global warming on the marine
The effects of global warming on the marine
 
Biological Oceanography
Biological OceanographyBiological Oceanography
Biological Oceanography
 
Marine pollution
Marine pollutionMarine pollution
Marine pollution
 
Blue carbon
Blue carbonBlue carbon
Blue carbon
 
Major and minor components of seawater
Major and minor components of seawaterMajor and minor components of seawater
Major and minor components of seawater
 
Coastal pollution and management
Coastal pollution and managementCoastal pollution and management
Coastal pollution and management
 
Primary production in aquaculture
Primary production in aquaculturePrimary production in aquaculture
Primary production in aquaculture
 
Marine pollution
Marine pollutionMarine pollution
Marine pollution
 

Destaque

Ozone layer depletion ppt
Ozone layer depletion pptOzone layer depletion ppt
Ozone layer depletion pptAnchal Singhal
 
Ecology notes ppt
Ecology notes pptEcology notes ppt
Ecology notes pptfarrellw
 
The ozone layer and its depletion
The ozone layer and its depletionThe ozone layer and its depletion
The ozone layer and its depletionSonali Madan
 
Introduction To Ecology
Introduction To EcologyIntroduction To Ecology
Introduction To Ecologysacklax40
 

Destaque (6)

Ecology ppt
Ecology pptEcology ppt
Ecology ppt
 
Powerpoint ..biomes
Powerpoint ..biomesPowerpoint ..biomes
Powerpoint ..biomes
 
Ozone layer depletion ppt
Ozone layer depletion pptOzone layer depletion ppt
Ozone layer depletion ppt
 
Ecology notes ppt
Ecology notes pptEcology notes ppt
Ecology notes ppt
 
The ozone layer and its depletion
The ozone layer and its depletionThe ozone layer and its depletion
The ozone layer and its depletion
 
Introduction To Ecology
Introduction To EcologyIntroduction To Ecology
Introduction To Ecology
 

Semelhante a Ocean Acidification

Ocean-Acidification-PP.pptx
Ocean-Acidification-PP.pptxOcean-Acidification-PP.pptx
Ocean-Acidification-PP.pptxCharuSingh281005
 
Oceanic acidification
Oceanic acidificationOceanic acidification
Oceanic acidificationammaraiqbal6
 
kajaloceanacidification-150123152716-conversion-gate02.pdf
kajaloceanacidification-150123152716-conversion-gate02.pdfkajaloceanacidification-150123152716-conversion-gate02.pdf
kajaloceanacidification-150123152716-conversion-gate02.pdfSuraj Verma
 
Frm 607 threats to coral reef b9 copy
Frm 607 threats to coral reef b9   copyFrm 607 threats to coral reef b9   copy
Frm 607 threats to coral reef b9 copyB. BHASKAR
 
Coral reef Threats, conservation and Restoration.pptx
Coral reef Threats, conservation and Restoration.pptxCoral reef Threats, conservation and Restoration.pptx
Coral reef Threats, conservation and Restoration.pptxVIRENDRA KUMAR
 
The effect of climate change on natural food levels
The effect of climate change on natural food levelsThe effect of climate change on natural food levels
The effect of climate change on natural food levelsAbd El-Rahman Khattaby
 
Global warming coral_reefs
Global warming coral_reefs Global warming coral_reefs
Global warming coral_reefs Ashish sahu
 
PLEASE USE YOUR OWN WORDS to answer these questions!httpwww.who.pdf
PLEASE USE YOUR OWN WORDS to answer these questions!httpwww.who.pdfPLEASE USE YOUR OWN WORDS to answer these questions!httpwww.who.pdf
PLEASE USE YOUR OWN WORDS to answer these questions!httpwww.who.pdfoptokunal1
 
climate change impact and mitigation measures in Aquatic Ecosystem
climate change impact and mitigation measures in Aquatic Ecosystemclimate change impact and mitigation measures in Aquatic Ecosystem
climate change impact and mitigation measures in Aquatic EcosystemB. BHASKAR
 
Marine pollution, its impact on marine life and remedial measures against wat...
Marine pollution, its impact on marine life and remedial measures against wat...Marine pollution, its impact on marine life and remedial measures against wat...
Marine pollution, its impact on marine life and remedial measures against wat...MD. JAKIR HOSEN
 
Impact of Climate change on fish Production.pdf
Impact of Climate change on fish Production.pdfImpact of Climate change on fish Production.pdf
Impact of Climate change on fish Production.pdfAbd El-Rahman Khattaby
 
Implementing and learning from nutrition-sensitive fish agri-food systems, e....
Implementing and learning from nutrition-sensitive fish agri-food systems, e....Implementing and learning from nutrition-sensitive fish agri-food systems, e....
Implementing and learning from nutrition-sensitive fish agri-food systems, e....WorldFish
 
Marine based sources of pollution
Marine based sources of pollutionMarine based sources of pollution
Marine based sources of pollutionPramoda Raj
 
Threats to marine biodiversity
Threats to marine biodiversity   Threats to marine biodiversity
Threats to marine biodiversity Rishika Vardhelli
 
Ocean and climate change
Ocean and climate changeOcean and climate change
Ocean and climate changeSharathKumar528
 
Threats to marine biodiversity
Threats to marine biodiversity   Threats to marine biodiversity
Threats to marine biodiversity Salmashaik26
 
marinepollution-170612075942.pptx
marinepollution-170612075942.pptxmarinepollution-170612075942.pptx
marinepollution-170612075942.pptxZohebShaikh38
 
MARINE POLLUTION pollution presentation
MARINE POLLUTION pollution presentationMARINE POLLUTION pollution presentation
MARINE POLLUTION pollution presentationDibyajyoti Sarma
 
International journal of applied sciences and innovation vol 2015 - no 1 - ...
International journal of applied sciences and innovation   vol 2015 - no 1 - ...International journal of applied sciences and innovation   vol 2015 - no 1 - ...
International journal of applied sciences and innovation vol 2015 - no 1 - ...sophiabelthome
 

Semelhante a Ocean Acidification (20)

Ocean-Acidification-PP.pptx
Ocean-Acidification-PP.pptxOcean-Acidification-PP.pptx
Ocean-Acidification-PP.pptx
 
Oceanic acidification
Oceanic acidificationOceanic acidification
Oceanic acidification
 
kajaloceanacidification-150123152716-conversion-gate02.pdf
kajaloceanacidification-150123152716-conversion-gate02.pdfkajaloceanacidification-150123152716-conversion-gate02.pdf
kajaloceanacidification-150123152716-conversion-gate02.pdf
 
Frm 607 threats to coral reef b9 copy
Frm 607 threats to coral reef b9   copyFrm 607 threats to coral reef b9   copy
Frm 607 threats to coral reef b9 copy
 
Coral reef Threats, conservation and Restoration.pptx
Coral reef Threats, conservation and Restoration.pptxCoral reef Threats, conservation and Restoration.pptx
Coral reef Threats, conservation and Restoration.pptx
 
The effect of climate change on natural food levels
The effect of climate change on natural food levelsThe effect of climate change on natural food levels
The effect of climate change on natural food levels
 
Global warming coral_reefs
Global warming coral_reefs Global warming coral_reefs
Global warming coral_reefs
 
PLEASE USE YOUR OWN WORDS to answer these questions!httpwww.who.pdf
PLEASE USE YOUR OWN WORDS to answer these questions!httpwww.who.pdfPLEASE USE YOUR OWN WORDS to answer these questions!httpwww.who.pdf
PLEASE USE YOUR OWN WORDS to answer these questions!httpwww.who.pdf
 
climate change impact and mitigation measures in Aquatic Ecosystem
climate change impact and mitigation measures in Aquatic Ecosystemclimate change impact and mitigation measures in Aquatic Ecosystem
climate change impact and mitigation measures in Aquatic Ecosystem
 
Marine pollution, its impact on marine life and remedial measures against wat...
Marine pollution, its impact on marine life and remedial measures against wat...Marine pollution, its impact on marine life and remedial measures against wat...
Marine pollution, its impact on marine life and remedial measures against wat...
 
Impact of Climate change on fish Production.pdf
Impact of Climate change on fish Production.pdfImpact of Climate change on fish Production.pdf
Impact of Climate change on fish Production.pdf
 
Implementing and learning from nutrition-sensitive fish agri-food systems, e....
Implementing and learning from nutrition-sensitive fish agri-food systems, e....Implementing and learning from nutrition-sensitive fish agri-food systems, e....
Implementing and learning from nutrition-sensitive fish agri-food systems, e....
 
Oceanic Blue Carbon
Oceanic Blue CarbonOceanic Blue Carbon
Oceanic Blue Carbon
 
Marine based sources of pollution
Marine based sources of pollutionMarine based sources of pollution
Marine based sources of pollution
 
Threats to marine biodiversity
Threats to marine biodiversity   Threats to marine biodiversity
Threats to marine biodiversity
 
Ocean and climate change
Ocean and climate changeOcean and climate change
Ocean and climate change
 
Threats to marine biodiversity
Threats to marine biodiversity   Threats to marine biodiversity
Threats to marine biodiversity
 
marinepollution-170612075942.pptx
marinepollution-170612075942.pptxmarinepollution-170612075942.pptx
marinepollution-170612075942.pptx
 
MARINE POLLUTION pollution presentation
MARINE POLLUTION pollution presentationMARINE POLLUTION pollution presentation
MARINE POLLUTION pollution presentation
 
International journal of applied sciences and innovation vol 2015 - no 1 - ...
International journal of applied sciences and innovation   vol 2015 - no 1 - ...International journal of applied sciences and innovation   vol 2015 - no 1 - ...
International journal of applied sciences and innovation vol 2015 - no 1 - ...
 

Último

Material Remains as Source of Ancient Indian History & Culture.ppt
Material Remains as Source of Ancient Indian History & Culture.pptMaterial Remains as Source of Ancient Indian History & Culture.ppt
Material Remains as Source of Ancient Indian History & Culture.pptBanaras Hindu University
 
ASTRINGENTS.pdf Pharmacognosy chapter 5 diploma in Pharmacy
ASTRINGENTS.pdf Pharmacognosy chapter 5 diploma in PharmacyASTRINGENTS.pdf Pharmacognosy chapter 5 diploma in Pharmacy
ASTRINGENTS.pdf Pharmacognosy chapter 5 diploma in PharmacySumit Tiwari
 
3.14.24 The Selma March and the Voting Rights Act.pptx
3.14.24 The Selma March and the Voting Rights Act.pptx3.14.24 The Selma March and the Voting Rights Act.pptx
3.14.24 The Selma March and the Voting Rights Act.pptxmary850239
 
LEAD5623 The Economics of Community Coll
LEAD5623 The Economics of Community CollLEAD5623 The Economics of Community Coll
LEAD5623 The Economics of Community CollDr. Bruce A. Johnson
 
3.12.24 Freedom Summer in Mississippi.pptx
3.12.24 Freedom Summer in Mississippi.pptx3.12.24 Freedom Summer in Mississippi.pptx
3.12.24 Freedom Summer in Mississippi.pptxmary850239
 
AUDIENCE THEORY - PARTICIPATORY - JENKINS.pptx
AUDIENCE THEORY - PARTICIPATORY - JENKINS.pptxAUDIENCE THEORY - PARTICIPATORY - JENKINS.pptx
AUDIENCE THEORY - PARTICIPATORY - JENKINS.pptxiammrhaywood
 
DNA and RNA , Structure, Functions, Types, difference, Similarities, Protein ...
DNA and RNA , Structure, Functions, Types, difference, Similarities, Protein ...DNA and RNA , Structure, Functions, Types, difference, Similarities, Protein ...
DNA and RNA , Structure, Functions, Types, difference, Similarities, Protein ...AKSHAYMAGAR17
 
The basics of sentences session 8pptx.pptx
The basics of sentences session 8pptx.pptxThe basics of sentences session 8pptx.pptx
The basics of sentences session 8pptx.pptxheathfieldcps1
 
BÀI TẬP BỔ TRỢ TIẾNG ANH 11 THEO ĐƠN VỊ BÀI HỌC - CẢ NĂM - CÓ FILE NGHE (FRIE...
BÀI TẬP BỔ TRỢ TIẾNG ANH 11 THEO ĐƠN VỊ BÀI HỌC - CẢ NĂM - CÓ FILE NGHE (FRIE...BÀI TẬP BỔ TRỢ TIẾNG ANH 11 THEO ĐƠN VỊ BÀI HỌC - CẢ NĂM - CÓ FILE NGHE (FRIE...
BÀI TẬP BỔ TRỢ TIẾNG ANH 11 THEO ĐƠN VỊ BÀI HỌC - CẢ NĂM - CÓ FILE NGHE (FRIE...Nguyen Thanh Tu Collection
 
Alamkara theory by Bhamaha Indian Poetics (1).pptx
Alamkara theory by Bhamaha Indian Poetics (1).pptxAlamkara theory by Bhamaha Indian Poetics (1).pptx
Alamkara theory by Bhamaha Indian Poetics (1).pptxDhatriParmar
 
Riti theory by Vamana Indian poetics.pptx
Riti theory by Vamana Indian poetics.pptxRiti theory by Vamana Indian poetics.pptx
Riti theory by Vamana Indian poetics.pptxDhatriParmar
 
ICS2208 Lecture4 Intelligent Interface Agents.pdf
ICS2208 Lecture4 Intelligent Interface Agents.pdfICS2208 Lecture4 Intelligent Interface Agents.pdf
ICS2208 Lecture4 Intelligent Interface Agents.pdfVanessa Camilleri
 
EDD8524 The Future of Educational Leader
EDD8524 The Future of Educational LeaderEDD8524 The Future of Educational Leader
EDD8524 The Future of Educational LeaderDr. Bruce A. Johnson
 
Pharmacology chapter No 7 full notes.pdf
Pharmacology chapter No 7 full notes.pdfPharmacology chapter No 7 full notes.pdf
Pharmacology chapter No 7 full notes.pdfSumit Tiwari
 
3.14.24 Gender Discrimination and Gender Inequity.pptx
3.14.24 Gender Discrimination and Gender Inequity.pptx3.14.24 Gender Discrimination and Gender Inequity.pptx
3.14.24 Gender Discrimination and Gender Inequity.pptxmary850239
 
POST ENCEPHALITIS case study Jitendra bhargav
POST ENCEPHALITIS case study  Jitendra bhargavPOST ENCEPHALITIS case study  Jitendra bhargav
POST ENCEPHALITIS case study Jitendra bhargavJitendra Bhargav
 
BBA 205 BE UNIT 2 economic systems prof dr kanchan.pptx
BBA 205 BE UNIT 2 economic systems prof dr kanchan.pptxBBA 205 BE UNIT 2 economic systems prof dr kanchan.pptx
BBA 205 BE UNIT 2 economic systems prof dr kanchan.pptxProf. Kanchan Kumari
 
PHARMACOGNOSY CHAPTER NO 5 CARMINATIVES AND G.pdf
PHARMACOGNOSY CHAPTER NO 5 CARMINATIVES AND G.pdfPHARMACOGNOSY CHAPTER NO 5 CARMINATIVES AND G.pdf
PHARMACOGNOSY CHAPTER NO 5 CARMINATIVES AND G.pdfSumit Tiwari
 

Último (20)

Material Remains as Source of Ancient Indian History & Culture.ppt
Material Remains as Source of Ancient Indian History & Culture.pptMaterial Remains as Source of Ancient Indian History & Culture.ppt
Material Remains as Source of Ancient Indian History & Culture.ppt
 
ASTRINGENTS.pdf Pharmacognosy chapter 5 diploma in Pharmacy
ASTRINGENTS.pdf Pharmacognosy chapter 5 diploma in PharmacyASTRINGENTS.pdf Pharmacognosy chapter 5 diploma in Pharmacy
ASTRINGENTS.pdf Pharmacognosy chapter 5 diploma in Pharmacy
 
3.14.24 The Selma March and the Voting Rights Act.pptx
3.14.24 The Selma March and the Voting Rights Act.pptx3.14.24 The Selma March and the Voting Rights Act.pptx
3.14.24 The Selma March and the Voting Rights Act.pptx
 
LEAD5623 The Economics of Community Coll
LEAD5623 The Economics of Community CollLEAD5623 The Economics of Community Coll
LEAD5623 The Economics of Community Coll
 
Problems on Mean,Mode,Median Standard Deviation
Problems on Mean,Mode,Median Standard DeviationProblems on Mean,Mode,Median Standard Deviation
Problems on Mean,Mode,Median Standard Deviation
 
3.12.24 Freedom Summer in Mississippi.pptx
3.12.24 Freedom Summer in Mississippi.pptx3.12.24 Freedom Summer in Mississippi.pptx
3.12.24 Freedom Summer in Mississippi.pptx
 
AUDIENCE THEORY - PARTICIPATORY - JENKINS.pptx
AUDIENCE THEORY - PARTICIPATORY - JENKINS.pptxAUDIENCE THEORY - PARTICIPATORY - JENKINS.pptx
AUDIENCE THEORY - PARTICIPATORY - JENKINS.pptx
 
DNA and RNA , Structure, Functions, Types, difference, Similarities, Protein ...
DNA and RNA , Structure, Functions, Types, difference, Similarities, Protein ...DNA and RNA , Structure, Functions, Types, difference, Similarities, Protein ...
DNA and RNA , Structure, Functions, Types, difference, Similarities, Protein ...
 
The basics of sentences session 8pptx.pptx
The basics of sentences session 8pptx.pptxThe basics of sentences session 8pptx.pptx
The basics of sentences session 8pptx.pptx
 
BÀI TẬP BỔ TRỢ TIẾNG ANH 11 THEO ĐƠN VỊ BÀI HỌC - CẢ NĂM - CÓ FILE NGHE (FRIE...
BÀI TẬP BỔ TRỢ TIẾNG ANH 11 THEO ĐƠN VỊ BÀI HỌC - CẢ NĂM - CÓ FILE NGHE (FRIE...BÀI TẬP BỔ TRỢ TIẾNG ANH 11 THEO ĐƠN VỊ BÀI HỌC - CẢ NĂM - CÓ FILE NGHE (FRIE...
BÀI TẬP BỔ TRỢ TIẾNG ANH 11 THEO ĐƠN VỊ BÀI HỌC - CẢ NĂM - CÓ FILE NGHE (FRIE...
 
Alamkara theory by Bhamaha Indian Poetics (1).pptx
Alamkara theory by Bhamaha Indian Poetics (1).pptxAlamkara theory by Bhamaha Indian Poetics (1).pptx
Alamkara theory by Bhamaha Indian Poetics (1).pptx
 
Riti theory by Vamana Indian poetics.pptx
Riti theory by Vamana Indian poetics.pptxRiti theory by Vamana Indian poetics.pptx
Riti theory by Vamana Indian poetics.pptx
 
ICS2208 Lecture4 Intelligent Interface Agents.pdf
ICS2208 Lecture4 Intelligent Interface Agents.pdfICS2208 Lecture4 Intelligent Interface Agents.pdf
ICS2208 Lecture4 Intelligent Interface Agents.pdf
 
t-test Parametric test Biostatics and Research Methodology
t-test Parametric test Biostatics and Research Methodologyt-test Parametric test Biostatics and Research Methodology
t-test Parametric test Biostatics and Research Methodology
 
EDD8524 The Future of Educational Leader
EDD8524 The Future of Educational LeaderEDD8524 The Future of Educational Leader
EDD8524 The Future of Educational Leader
 
Pharmacology chapter No 7 full notes.pdf
Pharmacology chapter No 7 full notes.pdfPharmacology chapter No 7 full notes.pdf
Pharmacology chapter No 7 full notes.pdf
 
3.14.24 Gender Discrimination and Gender Inequity.pptx
3.14.24 Gender Discrimination and Gender Inequity.pptx3.14.24 Gender Discrimination and Gender Inequity.pptx
3.14.24 Gender Discrimination and Gender Inequity.pptx
 
POST ENCEPHALITIS case study Jitendra bhargav
POST ENCEPHALITIS case study  Jitendra bhargavPOST ENCEPHALITIS case study  Jitendra bhargav
POST ENCEPHALITIS case study Jitendra bhargav
 
BBA 205 BE UNIT 2 economic systems prof dr kanchan.pptx
BBA 205 BE UNIT 2 economic systems prof dr kanchan.pptxBBA 205 BE UNIT 2 economic systems prof dr kanchan.pptx
BBA 205 BE UNIT 2 economic systems prof dr kanchan.pptx
 
PHARMACOGNOSY CHAPTER NO 5 CARMINATIVES AND G.pdf
PHARMACOGNOSY CHAPTER NO 5 CARMINATIVES AND G.pdfPHARMACOGNOSY CHAPTER NO 5 CARMINATIVES AND G.pdf
PHARMACOGNOSY CHAPTER NO 5 CARMINATIVES AND G.pdf
 

Ocean Acidification

  • 1. Presented By:- Elen Barla M.Sc 2nd semester Roll no-11ES01
  • 2. CONTENTS •Introduction •Carbon cycle •What is ocean acidification? •Chemistry of ocean acidification •Impacts of ocean acidification •Potential effects on ecosystem •Facts about Ocean Acidification •What can we do about it? •conclusion
  • 3. •Oceans cover more than 70% of the earth’s surface. •Burning of fossil fuels and deforestation have increased the amount of carbon dioxide emitted to the atmosphere-and the amount that dissolve into the ocean. •Massive amount of carbon dioxide into the sea -altering water chemistry. -causing ocean to become more acidic. -affecting life-cycle of marine organism, particularly at the lower end of food chain.
  • 4. •Carbon dioxide is a critical part of earth’s atmosphere. •It maintain a natural balance of carbon in the atmosphere , land and ocean. •The ocean absorb carbon in two ways-physical and biological.
  • 5. What is Ocean Acidification ? Since the beginning of industrial era , emission of carbon dioxide have increased. Exceeding the capacity of the carbon cycle to maintain an equilibrium between the atmosphere and ocean. The absorption of carbon dioxide is fundamentally changing the chemistry of the ocean by triggering reactions that make sea water more acidic , a phenomenon called Ocean acidification. Definition:- “Ocean Acidification is a term used to describe the changes in the chemistry of the earth’s ocean ie ongoing decrease in the pH and increase in acidity , caused by the uptake of anthropogenic carbon dioxide from the atmosphere”
  • 6. CHEMISTRY OF OCEAN ACIDIFICATION
  • 7. IMPACTS OF OCEAN ACIDIFICATION
  • 8. POTENTIAL EFFECTS ON ECOSYSTEMS Specific effects of ocean acidification to a variety of ocean ecosystem , around the globe. •THE OPEN OCEAN ECOSYSTEM: Based on plankton , which serves as the foundation of the marine food chain. Planktonic species including coccolithophores , foraminifera , and pteropods need carbonate ions to build their shells. If ocean acidification increases , Carbonate based planktonic species may decline. A range of species including fish , seals , whales could lose their preferred food. Cont……
  • 9. Photos projected for the year 2100 shows pteropod’s shell slowly dissolves after 45 days when placed in sea water with low pH and carbonate levels.
  • 10. POLAR ECOSYSTEM •The polar waters of Arctic and Southern oceans harbor many protected and endangered marine mammals. •Carbon Dioxide dissolve more readily in cold water , acidifying the waters of polar regions faster than in lower latitudes. •If carbon dioxide continue to increase , by the year 2050 , the surface waters of southern ocean will become corrosive to some type of carbonate structure. TROPICAL CORAL REEFS • In the Natural world , corals must rapidly grow to outpace predation by fish and other organisms and to compete for space with algae and sea-grasses. •Ocean Acidification ,prevents reef building corals from growing fast enough to escape predation and competition and also contribute to coral bleaching. Cont………
  • 12. DEEP WATER CORAL REEFS •Corals in the deep sea create habitat for many species of fish . •Ocean Acidification in deeper water reduces calcification and decrease the rate of growth of deep water corals.
  • 13. Growth and skeletal integrity of scleractinian corals and coralline algae that are likely to be compromised by ocean acidification.
  • 14. FACTS ABOUT OCEAN ACIDIFICATION •World’s oceans are becoming acidic at faster rate, threatening disaster for marine life and food supplies across globe . • The carbon dioxide in the water has caused the pH of surface oceans to fall by 0.1 units –projected to fall further 0.3-0.4 units. •Currently , the ocean absorbs about a third of human-created carbon dioxide emission , roughly 22 million tons a day. •Acidity has increased 30% and its effect is irreversible. CONT……
  • 15. •If carbon dioxide emission continue unchecked-key parts of the marine environment that are essential for fish-such as Coral reefs , the Algae and plankton will be severely affected , leading to the extinction of some species by 2050. •Current rate of acidification -making difficult for species and habitats to adapt. •If atmospheric carbon dioxide can be stabilized at 450ppm, only 8% of existing tropical and sub-tropical coral reefs will still be in the waters of right pH level to support their growth.
  • 16. What can we do about it ? •Combating Acidification  requires reducing carbon dioxide emission and improving the health of the ocean. Creating marine protected areas and stopping destructive fishing practices.  Addition of Alkali to the Oceans. Adding of lime stone carbonate material. Plantation of trees. Green belt around the industries.
  • 18. CONCLUSION •Due to ,Ocean Acidification , the oceans’ capacity as carbon store house is diminishing. • If nothing is done to help curb Ocean Acidification , its negative impact may be felt on the marine environment , local communities , and all the way up through the global economy..
  • 19. “This is not something that’s off in the future. This is not something for our children’s children. It’s happening now.” – Dr. Christopher Sabine