environment 2015
TRANSCRIPT
![Page 1: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/1.jpg)
EnvironmentalEnvironmentalConcernsConcerns
![Page 2: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/2.jpg)
Human Impact on Greenhouse GasesHuman Impact on Greenhouse Gases
![Page 3: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/3.jpg)
Global Warming - ReasonsGlobal Warming - Reasons Carbon dioxide gases released into Carbon dioxide gases released into
environmentenvironment Due to massive amounts of Due to massive amounts of non-renewable non-renewable
fossil fuelsfossil fuels being burned by humans, being burned by humans, including:including:• CoalCoal• OilOil• Natural gasNatural gas
Non-renewable resources - Non-renewable resources - cannot be created over again and cannot be created over again and our supply of them is limited; once our supply of them is limited; once they run out, the resource is gone they run out, the resource is gone forever.forever.
![Page 4: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/4.jpg)
Global WarmingGlobal Warming Some naturally occurring contributors to Some naturally occurring contributors to
global warmingglobal warming: : volcanic eruptions & meteor volcanic eruptions & meteor impactsimpacts
![Page 5: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/5.jpg)
Most Global Warming Impacts Most Global Warming Impacts caused by Climate Changecaused by Climate Change
![Page 6: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/6.jpg)
ClimateClimate Climate is commonly defined as the Climate is commonly defined as the
weather (temperature and rainfall) weather (temperature and rainfall) averaged over a long period of timeaveraged over a long period of time
The climate The climate of a location of a location is affected by is affected by its latitude, its latitude, terrain, terrain, altitude, ice altitude, ice or snow or snow cover, as well cover, as well as nearby as nearby water bodies water bodies and their and their currents.currents.
![Page 7: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/7.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming Rising incidence of Rising incidence of violent stormsviolent storms
North American Hurricane Season 2005North American Hurricane Season 2005
![Page 8: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/8.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming Rising incidence of Rising incidence of heat wavesheat waves (Europe (Europe
2003)2003)
![Page 9: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/9.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming Above average temperatures Above average temperatures melting melting
glaciers and sea levels are risingglaciers and sea levels are rising as a as a resultresult
![Page 10: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/10.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming Rising Sea LevelsRising Sea Levels
![Page 11: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/11.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming Diseases are spreading more quickly and Diseases are spreading more quickly and
easily easily extending their ranges because of warmer extending their ranges because of warmer
temperaturestemperatures Many diseases, especially those in water, Many diseases, especially those in water,
reproduce more rapidly in warmer weatherreproduce more rapidly in warmer weather
![Page 12: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/12.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming
Earlier arrival of springEarlier arrival of spring in some parts of in some parts of the world – the world – impacting global agricultural impacting global agricultural patternspatterns
![Page 13: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/13.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming As As permafrost meltspermafrost melts, Arctic communities , Arctic communities
lose valuable shorelinelose valuable shoreline
![Page 14: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/14.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming
Causes Causes polar bears to starvepolar bears to starve because because they cannot use the ice to hunt sealsthey cannot use the ice to hunt seals
Now on Now on endangered endangered species listspecies list
![Page 15: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/15.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming
Canada’s Canada’s Arctic regions Arctic regions – – sea ice sea ice shrinkingshrinking Causes Causes
sinking sinking shorelines shorelines and death of and death of some Arctic some Arctic animalsanimals
![Page 16: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/16.jpg)
Global Warming in CanadaGlobal Warming in Canada
![Page 17: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/17.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming In BC – increasing water temperatures In BC – increasing water temperatures
have contributed to have contributed to salmon spawning salmon spawning numbers being 1/3 of what they were in numbers being 1/3 of what they were in 1990s1990s
![Page 18: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/18.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming While warmer temperatures could While warmer temperatures could
lengthen Canada’s short growing season – lengthen Canada’s short growing season – also also higher risk of drought and forest fireshigher risk of drought and forest fires
![Page 19: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/19.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming Warmer weather causes Warmer weather causes increasing increasing
numbers of forest fires and more droughts numbers of forest fires and more droughts in Canada’s prairie areasin Canada’s prairie areas
![Page 20: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/20.jpg)
Effects / Results of Global WarmingEffects / Results of Global Warming
Canada’s oceansCanada’s oceans Increasing surface Increasing surface
water temperatures, water temperatures, fewer nutrients are fewer nutrients are brought to the surface brought to the surface by the movement of by the movement of colder water from deep colder water from deep in the oceanin the ocean
Nutrients support and Nutrients support and maintain zooplankton – maintain zooplankton – beginning of the food beginning of the food chain of sea lifechain of sea life
![Page 21: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/21.jpg)
Kyoto Protocol - 1997Kyoto Protocol - 1997 Agreement among 180 Agreement among 180
industrialized nations to industrialized nations to reduce greenhouse gas reduce greenhouse gas emissionsemissions
Canada promised to Canada promised to reduce greenhouse gas reduce greenhouse gas emissions by 6% of the emissions by 6% of the 1990 level by 20121990 level by 2012
Countries not meeting Countries not meeting their reduction targets their reduction targets could buy credits from could buy credits from other countriesother countries
USA withdrew in 2001USA withdrew in 2001
![Page 22: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/22.jpg)
Arguments against KyotoArguments against Kyoto Concerned that meeting Concerned that meeting
goals will involve high goals will involve high costs to businesses and costs to businesses and government and possible government and possible loss of jobsloss of jobs
Provincial governments Provincial governments must regulate polluting must regulate polluting industries despite the fact industries despite the fact that the federal that the federal government signed the government signed the agreement without agreement without consulting the provincesconsulting the provinces
Some argue not enough Some argue not enough evidence that global evidence that global warming to blame for warming to blame for climate changeclimate change
![Page 23: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/23.jpg)
![Page 24: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/24.jpg)
Kyoto & CanadaKyoto & Canada
2006 - Canada's 2006 - Canada's greenhouse gas greenhouse gas emissions were up emissions were up by 24% by 24%
far from the far from the government's government's commitment to meet commitment to meet a target 6% below a target 6% below the 1990 levelsthe 1990 levels
![Page 25: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/25.jpg)
Kyoto & CanadaKyoto & Canada Election of a Conservative Election of a Conservative
government in 2006 brought government in 2006 brought about a reversal in Canada's about a reversal in Canada's climate change policyclimate change policy
2007 –2007 – Government Government announced plans to announced plans to introduce legislation that introduce legislation that would regulate industrial would regulate industrial pollutants as part of the pollutants as part of the Conservatives' proposed Conservatives' proposed Clean Air ActClean Air Act, to take effect , to take effect in January 2010. in January 2010.
said Canada will not attempt said Canada will not attempt to meet Kyoto's greenhouse to meet Kyoto's greenhouse gas targetsgas targets
![Page 26: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/26.jpg)
Possible Solutions – Possible Solutions – Renewable Energy ResourcesRenewable Energy Resources
Sustainable Sustainable sources of sources of energy could energy could lessen lessen dependence on dependence on fossil fuels, such fossil fuels, such as:as: Wind TurbinesWind Turbines
http://www.youtube.com/watch?v=Hg9fiDUroo4
![Page 27: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/27.jpg)
Wind PowerWind Power
![Page 28: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/28.jpg)
Solutions - Solar Power PanelsSolutions - Solar Power Panels
http://www.youtube.com/watch?v=iG7FNcw7a5c&feature=related
http://www.youtube.com/watch?v=0hCggdtEU-M&feature=related
![Page 29: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/29.jpg)
Solutions – Tidal PowerSolutions – Tidal Power
http://www.youtube.com/watch?v=qRUl1mJQHmc&feature=related
http://www.youtube.com/watch?v=F0mzrbfzUpM&feature=related
http://www.youtube.com/watch?v=VamSAbwgJKk&feature=related
http://www.youtube.com/watch?v=tSBACzRE3Gw&feature=related
![Page 30: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/30.jpg)
Solutions – Ground Source EnergySolutions – Ground Source Energy
http://www.youtube.com/watch?v=kUvdNrOD4PY
http://www.youtube.com/watch?v=lD82e5RYfW8&feature=related
![Page 31: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/31.jpg)
Solutions – BiofuelsSolutions – Biofuels Ethanol – some made from CornEthanol – some made from Corn
![Page 32: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/32.jpg)
Ethanol – ConcernsEthanol – Concernso Ethanol – while reduces levels
of carbon monoxide and other toxic air pollutants, corn-based ethanol production is energy intensive, and in some instances uses nearly as much energy to produce (including the energy needed for farming and making fertilizers) than it supplies, although new technologies are improving the efficiency of production.
http://www.youtube.com/watch?v=j9QQcP_Y1IIhttp://www.youtube.com/watch?v=8R012X3tU6Y&feature=related
![Page 33: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/33.jpg)
Biofuels – instead of gasolineBiofuels – instead of gasoline
http://www.youtube.com/watch?v=WRB5VQMb5RI
![Page 34: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/34.jpg)
Geothermal EnergyGeothermal Energy
Heat from the ground harvestedHeat from the ground harvested
![Page 35: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/35.jpg)
Alternatives to Alternatives to Reduce Reduce Fossil Fuel Use Fossil Fuel Use
Hydrogen or methanol fuelled power cells Hydrogen or methanol fuelled power cells for automobilesfor automobiles
![Page 36: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/36.jpg)
Alternatives to Alternatives to ReduceReduce Fossil Fuel Use Fossil Fuel Use Reduce, re-use, recycleReduce, re-use, recycle
![Page 37: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/37.jpg)
Alternatives to Alternatives to ReduceReduce Fossil Fuel Use Fossil Fuel Use
Carpool, use public transportation, ride Carpool, use public transportation, ride bicycle or walkbicycle or walk
![Page 38: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/38.jpg)
![Page 39: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/39.jpg)
Ozone DepletionOzone Depletion
Ozone layer – Ozone layer – region of the region of the atmosphere atmosphere containing containing relatively high relatively high concentrations of concentrations of ozone – approx ozone – approx 19-48km above 19-48km above the Earth’s surfacethe Earth’s surface
http://www.youtube.com/watch?v=SSycyCuQmUA&feature=related
![Page 40: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/40.jpg)
Ozone DepletionOzone Depletion
Ozone is formed Ozone is formed by the action of by the action of solar ultraviolet solar ultraviolet light on oxygenlight on oxygen
It’s the only gas It’s the only gas able to block out able to block out the ultraviolet the ultraviolet rays from the sunrays from the sun
http://www.youtube.com/watch?v=e9fqpnkiUi0&feature=related
![Page 41: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/41.jpg)
Ozone - DamageOzone - Damage Chlorofluorocarbons (CFCs)Chlorofluorocarbons (CFCs)
Have done 80% of the damage to the Ozone Have done 80% of the damage to the Ozone Layer (creating “holes”)Layer (creating “holes”)
Widely used in coolants for refrigerators and Widely used in coolants for refrigerators and air conditioners, solvents, and aerosol cansair conditioners, solvents, and aerosol cans
![Page 42: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/42.jpg)
Results of Ozone DepletionResults of Ozone Depletion
![Page 43: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/43.jpg)
Results of Ozone DepletionResults of Ozone Depletion
Higher incidences of skin cancerHigher incidences of skin cancer
![Page 44: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/44.jpg)
Results of Ozone DepletionResults of Ozone Depletion
Reduction of microscopic marine life like Reduction of microscopic marine life like phytoplankton which will impact the food phytoplankton which will impact the food chainchain
![Page 45: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/45.jpg)
Results of Ozone DepletionResults of Ozone Depletion
Mutations of genetic structure of plants Mutations of genetic structure of plants and animalsand animals
![Page 46: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/46.jpg)
Results of Ozone DepletionResults of Ozone Depletion
Reduces rate Reduces rate of of photosynthesisphotosynthesis in plants in plants (lowers energy (lowers energy output of output of producers)producers)
![Page 47: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/47.jpg)
Possible Responses to Ozone DepletionPossible Responses to Ozone Depletion
Montreal Protocol Montreal Protocol – 1987– 1987 Agreement Agreement
between all between all industrial nations industrial nations to cut use of to cut use of CFCs in an effort CFCs in an effort to eliminate these to eliminate these chemicals by chemicals by 20002000
http://www.youtube.com/watch?v=Dn3KvZ_Xyqs&feature=related
![Page 48: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/48.jpg)
Possible Responses to Ozone DepletionPossible Responses to Ozone Depletion
Avoid using plastic foam packaging and Avoid using plastic foam packaging and goods that use CFCs (some aerosol cans)goods that use CFCs (some aerosol cans)
![Page 49: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/49.jpg)
Possible Responses to Ozone DepletionPossible Responses to Ozone Depletion
Dispose of old Dispose of old refrigerators, refrigerators, freezers, and freezers, and air air conditioners conditioners safelysafely
![Page 50: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/50.jpg)
Fresh Water SuppliesFresh Water Supplies 70% of Earth’s Surface – covered by water70% of Earth’s Surface – covered by water However- most not readily accessible for However- most not readily accessible for
human usehuman use
![Page 51: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/51.jpg)
Fresh WaterFresh Water
Water stored in:Water stored in: SoilSoil Aquifers Aquifers
(Ground water)(Ground water) LakesLakes RiversRivers streamsstreams
![Page 52: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/52.jpg)
Fresh WaterFresh Water Only 3% fresh water – 78% of which is Only 3% fresh water – 78% of which is
stored in ice caps and glaciersstored in ice caps and glaciers Canada has 18% of all surface fresh water Canada has 18% of all surface fresh water
on Earthon Earth Large Large
portion ofportion ofthis in this in Great LakesGreat Lakes
![Page 53: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/53.jpg)
Fresh Water Issues Fresh Water Issues in Developing Worldin Developing World
Mismanagement / OveruseMismanagement / Overuse Limited accessLimited access Lack of proper sanitation Lack of proper sanitation
systemssystems Lack of water treatment Lack of water treatment
facilitiesfacilities DroughtDrought Privatization (water is Privatization (water is
owned by a private owned by a private company and is expensive company and is expensive to buy)to buy)
Cost (poorest of poor Cost (poorest of poor cannot afford)cannot afford)
![Page 54: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/54.jpg)
Threats to Water Quality and Threats to Water Quality and Supply in CanadaSupply in Canada
ContaminationContamination Oil tanker accidentsOil tanker accidents Natural causesNatural causes Dumping of wasteDumping of waste
![Page 55: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/55.jpg)
Threats to Water Quality and Threats to Water Quality and Supply in CanadaSupply in Canada
ContaminationContamination Agricultural Agricultural
• Chemicals used in herbicides / pesticidesChemicals used in herbicides / pesticides• Can seep into nearby streams and ground waterCan seep into nearby streams and ground water
![Page 56: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/56.jpg)
Threats to Water Quality and Threats to Water Quality and Supply in CanadaSupply in Canada
ContaminationContamination Industrial Industrial
• By-products of production in oil refineries, pulp By-products of production in oil refineries, pulp mills, nuclear reactors, and chemical factoriesmills, nuclear reactors, and chemical factories
![Page 57: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/57.jpg)
Threats to Water Quality and Threats to Water Quality and Supply in CanadaSupply in Canada
ContaminationContamination MunicipalMunicipal
• Raw sewage, detergents, and solventsRaw sewage, detergents, and solvents
![Page 58: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/58.jpg)
Threats to Water Quality and Threats to Water Quality and Supply in CanadaSupply in Canada
MisuseMisuse 67% of accessible 67% of accessible
surface water is surface water is used by agricultureused by agriculture
When farmers till When farmers till land – lose moisture land – lose moisture – so land is – so land is irrigated irrigated – watered by – watered by artificial meansartificial means
![Page 59: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/59.jpg)
Threats to Water Quality and Threats to Water Quality and Supply in CanadaSupply in Canada
MisuseMisuse 19% fresh water used for industry19% fresh water used for industry 9% for municipal / residential services9% for municipal / residential services
![Page 60: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/60.jpg)
Threats to Water Quality and Threats to Water Quality and Supply in CanadaSupply in Canada
Groundwater Groundwater DepletionDepletion Over pumping of Over pumping of
aquifers aquifers (underground layer (underground layer of water-of water-permeable rock) permeable rock) which replenish which replenish slowly reduces the slowly reduces the water table (top of water table (top of saturated layer of saturated layer of porous rock – porous rock – ground water)ground water)
![Page 61: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/61.jpg)
Threats to Water Quality and Threats to Water Quality and Supply in CanadaSupply in Canada
Groundwater DepletionGroundwater Depletion Digging deeper wells which could potentially Digging deeper wells which could potentially
tap harmful minerals like arsenic and fluoridetap harmful minerals like arsenic and fluoride
![Page 62: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/62.jpg)
Threats to Water Quality and Threats to Water Quality and Supply in CanadaSupply in Canada
![Page 63: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/63.jpg)
Threats to Water Quality and Threats to Water Quality and Supply in CanadaSupply in Canada
Water ExportsWater Exports The transfer water over long distancesThe transfer water over long distances Example: California would like to buy BC water; Example: California would like to buy BC water;
however, this could influence water table levels in BChowever, this could influence water table levels in BC
![Page 64: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/64.jpg)
Threats to Water Quality and Threats to Water Quality and Supply in CanadaSupply in Canada
Increasing PopulationsIncreasing Populations Main threat to world’s freshwater supply’s Main threat to world’s freshwater supply’s
shortages threaten world agricultural shortages threaten world agricultural production as the amount to irrigated land has production as the amount to irrigated land has more than doubled in the 2more than doubled in the 2ndnd half of the 20 half of the 20ththCC
![Page 65: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/65.jpg)
Possible Possible SolutionsSolutions to Water Supply Threats to Water Supply Threats
Treatment technologies (Water Treatment Treatment technologies (Water Treatment Plants)Plants)
![Page 66: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/66.jpg)
Possible Solutions to Water Supply ThreatsPossible Solutions to Water Supply Threats
DesalinationDesalination of sea water (remove salt) of sea water (remove salt)
![Page 67: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/67.jpg)
Possible Solutions to Water Supply ThreatsPossible Solutions to Water Supply Threats
Reclaimed or recycled water technologiesReclaimed or recycled water technologies Rainwater harvestingRainwater harvesting
![Page 68: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/68.jpg)
Possible Solutions to Water Supply ThreatsPossible Solutions to Water Supply Threats
ConservationConservation Low energy sprinkler systems and Low energy sprinkler systems and
washing machineswashing machines Low flush toilets and other small-scale Low flush toilets and other small-scale
supply systemssupply systems Water Management technologyWater Management technology
![Page 69: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/69.jpg)
![Page 70: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/70.jpg)
Possible Solutions to Water Supply ThreatsPossible Solutions to Water Supply Threats
Farmers change watering schedules to Farmers change watering schedules to coincide with seasonal rainscoincide with seasonal rains
Shallow wells or use new technology / Shallow wells or use new technology / techniques in well drilling so farmers are techniques in well drilling so farmers are able to tap groundwater in aquifers able to tap groundwater in aquifers
Drip irrigationDrip irrigation which directs which directs water to plant roots – water to plant roots – less evaporationless evaporation
![Page 71: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/71.jpg)
Possible Solutions to Water Supply ThreatsPossible Solutions to Water Supply Threats
Micro-dams Micro-dams rather than large-scale rather than large-scale projects that cause major harm to the projects that cause major harm to the environmentenvironment
Stronger Stronger government regulationsgovernment regulations Taxes or user ratesTaxes or user rates
could be introduced to could be introduced to encourage encourage conservationconservation
Set Set watering patternswatering patterns within municipalities within municipalities
![Page 72: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/72.jpg)
Acid RainAcid Rain Precipitation Precipitation
(rain, snow, hail, (rain, snow, hail, or fog) with a or fog) with a pH level of less pH level of less then 5.6then 5.6
Caused by Caused by heavy industrial heavy industrial activity with activity with acids like acids like sulphur dioxide, sulphur dioxide, nitrogen oxide, nitrogen oxide, and burning and burning fossil fuelsfossil fuels
![Page 73: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/73.jpg)
Acid RainAcid Rain Can poison plant life Can poison plant life
and wildlife of an areaand wildlife of an area Cause genetic Cause genetic
mutationsmutations Decrease growth rates Decrease growth rates
of treesof trees Corrode steelCorrode steel Affect lung capacity in Affect lung capacity in
humanshumans Especially predominant Especially predominant
in Great Lakes areain Great Lakes area
![Page 74: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/74.jpg)
Acid Rain - ResponseAcid Rain - Response
Canada- United States Canada- United States Air Quality Air Quality AgreementAgreement signed by Canada and the signed by Canada and the US in Ottawa - 1991 US in Ottawa - 1991
addresses transboundary air pollution addresses transboundary air pollution leading to acid rain leading to acid rain
![Page 75: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/75.jpg)
DeforestationDeforestation
![Page 76: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/76.jpg)
DeforestationDeforestation The permanent loss of old growth forestsThe permanent loss of old growth forests Has a drastic effect on the forests of the worldHas a drastic effect on the forests of the world Important to the recycling of carbon dioxide, and Important to the recycling of carbon dioxide, and
the release of oxygen into the atmospherethe release of oxygen into the atmosphere Leads to more Leads to more
global warmingglobal warming Survival of someSurvival of some
species threatenedspecies threatened
![Page 77: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/77.jpg)
DeforestationDeforestation Brazilian RainforestBrazilian Rainforest
Develop rainforest Develop rainforest through farming, through farming, cattle ranching, cattle ranching, mining, and mining, and lumberinglumbering
Often no reforestation Often no reforestation occurs and removal occurs and removal of forests lead to dry of forests lead to dry wastelandswastelands
http://www.youtube.com/watch?v=Gqk_sre54WA&feature=related
![Page 78: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/78.jpg)
Nearby bodies of water Nearby bodies of water because soil no longer because soil no longer covered by forest, it covered by forest, it becomes stripped away by becomes stripped away by rain or snowrain or snow
Washed-out soil raises Washed-out soil raises riverbeds, which leads to riverbeds, which leads to flooding, clogs reservoirs, flooding, clogs reservoirs, and shortens life of damsand shortens life of dams
Also contributes to formation Also contributes to formation of new islands, which of new islands, which depletes coastal fisheriesdepletes coastal fisheries
Many insect, animal, and Many insect, animal, and plant species have become plant species have become extinct or endangered due extinct or endangered due to deforestationto deforestation
Deforestation AffectsDeforestation Affects
![Page 79: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/79.jpg)
Canada’s ForestsCanada’s Forests Canada has:Canada has:
¼ of the world’s ¼ of the world’s temperate temperate deciduous coastal deciduous coastal forestforest
1/3 of world’s 1/3 of world’s boreal coniferous boreal coniferous forestforest
Virtually all of the Virtually all of the world’s old growth world’s old growth pinepine
![Page 80: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/80.jpg)
Decline of Canada’s Forests due toDecline of Canada’s Forests due to Forest firesForest fires Industrial Industrial
developmentdevelopment LoggingLogging In BC: In BC:
Pine Beetle Pine Beetle EpidemicEpidemic
• Largely due to Largely due to global warmingglobal warming
• Winters not cold Winters not cold enough to kill enough to kill themthem
![Page 81: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/81.jpg)
DesertificationDesertification
![Page 82: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/82.jpg)
DesertificationDesertification Expansion of deserts Expansion of deserts
due to due to mismanagement of the mismanagement of the land in agricultureland in agriculture
Using too much Using too much irrigation and artificial irrigation and artificial fertilizers to grow food fertilizers to grow food out of season can make out of season can make soils too salty to soils too salty to continue to grow cropscontinue to grow crops
Farmland can become Farmland can become a wasteland or desert a wasteland or desert on which very little can on which very little can grow or survivegrow or survive
![Page 83: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/83.jpg)
DesertificationDesertification process whereby the productivity of drought- process whereby the productivity of drought-
prone land decreases because of a variety of prone land decreases because of a variety of factors including:factors including:
overgrazing (poor rangeland management), overgrazing (poor rangeland management), poor irrigation (waterlogging and salinization),poor irrigation (waterlogging and salinization), deforestation, deforestation, Over-cultivation, Over-cultivation, drought, drought, soil erosion, soil erosion, chemical action chemical action and other practices. and other practices.
http://www.youtube.com/watch?v=zLBYfyp24Xc&feature=related
![Page 84: Environment 2015](https://reader036.vdocument.in/reader036/viewer/2022070509/589a904c1a28abae648b542f/html5/thumbnails/84.jpg)
Desertification and Global WarmingDesertification and Global Warming One of the impacts One of the impacts
which global warming which global warming may have on the may have on the surface of the Earth surface of the Earth is to exacerbate the is to exacerbate the worldwide problem of worldwide problem of desertification. desertification.
A decrease in the A decrease in the total amount of total amount of rainfall in arid and rainfall in arid and semi-arid areas could semi-arid areas could increase the total increase the total area of drylands area of drylands worldwide, and thus worldwide, and thus the total amount of the total amount of land potentially at land potentially at risk from risk from desertification.desertification.