ENVIORMENTAL PROBLEMS

global warmingglobal warming

ENVIORMENTALENVIORMENTALPROBLEMSPROBLEMS

By: Janelle HostBy: Janelle Host

Nick AmesNick Ames


Environmental Issues DiscussedEnvironmental Issues Discussed

This PowerPoint focuses on

Global WarmingDeforestation Endangered Species

POLLUTION


GLOBAL WARMINGGLOBAL WARMING

Definition: Global warming is the observed Definition: Global warming is the observed increase in average temperature if the Earth’s increase in average temperature if the Earth’s

atmosphere and oceans in recent decades. It is atmosphere and oceans in recent decades. It is due to the increased amounts of greenhouse due to the increased amounts of greenhouse

gasses like C02. Greenhouse gasses absorb the gasses like C02. Greenhouse gasses absorb the infrared rays that heat the planet, instead of infrared rays that heat the planet, instead of

allowing them to escape the atmosphere.allowing them to escape the atmosphere.

Major IssuesMajor Issues Back to Main PageBack to Main Page


Major IssuesMajor Issues Increased gasses are a result of human Increased gasses are a result of human

population increase and inventions such population increase and inventions such as gas exhaust from cars.as gas exhaust from cars.

Increase in global temperature can result Increase in global temperature can result in the increase of sea level and amount of in the increase of sea level and amount of precipitation, in turn creating floodsprecipitation, in turn creating floods

Other theories believe that global warming Other theories believe that global warming is within the natural cyclic fluctuations. is within the natural cyclic fluctuations. We are just at a high point in temperature.We are just at a high point in temperature.

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DEFORESTATIONDEFORESTATION

Click for VideoClick for Video

Definition: Definition: The conversion of forested The conversion of forested areas to non-forest land use such as urban areas to non-forest land use such as urban use or farmable land. This removal of trees use or farmable land. This removal of trees with insufficient amounts of reforestationwith insufficient amounts of reforestation



Major IssuesMajor Issues It alters the amount of water in the soil It alters the amount of water in the soil

and ground water and the moisture in the and ground water and the moisture in the atmosphere.atmosphere.

We have no methods to remove CO2 and We have no methods to remove CO2 and pollutants from the air aside from trees pollutants from the air aside from trees that clean the air for us.that clean the air for us.

Runoff is faster and more flooding may Runoff is faster and more flooding may occur.occur.

Displaces natural wildlife, sometimes with Displaces natural wildlife, sometimes with fatal effects. fatal effects.

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ENDANGERED ENDANGERED SPECIES SPECIES

Definition: Definition: A population of A population of something which is either few in something which is either few in

numbers or threatened by numbers or threatened by environmental factors of becoming environmental factors of becoming

extinct. extinct.



Major IssuesMajor Issues

Loss of a species in itself, morally and Loss of a species in itself, morally and genetically.genetically.

Destabilizes the eco system as a whole, Destabilizes the eco system as a whole, removing one species may remove a link removing one species may remove a link to the food chain, other species who to the food chain, other species who interact or depend on them may starve. interact or depend on them may starve. Also, one species may become more Also, one species may become more rampart if not removed by another. rampart if not removed by another.

Back to DefinitionBack to Definition Issues Main PageIssues Main Page


PollutionPollution


DefinitionDefinition Any substance which in excess is Any substance which in excess is

known to be harmful to any living known to be harmful to any living organism.organism.

Two CategoriesTwo CategoriesPoint SourcePoint Source Non Point SourceNon Point Source

Pollution HomePollution Home


Point SourcePoint Source

Usually confined sources of air and Usually confined sources of air and water pollution such as pipes that water pollution such as pipes that enter into a stream or chimney enter into a stream or chimney stacks emitting waste into the stacks emitting waste into the atmosphere.atmosphere.

Examples: Factories, Oil Spills Examples: Factories, Oil Spills

Pollution MainPollution Main Pollution Definition Pollution Definition


Non-Point SourceNon-Point Source

Diffused or intermittent sources of pollution, Diffused or intermittent sources of pollution, can be air or water. can be air or water.

Non-Point sources are those that don’t have Non-Point sources are those that don’t have powerful/concentrated amounts of pollutionpowerful/concentrated amounts of pollution

Examples: Crop Runoff, LandfillsExamples: Crop Runoff, Landfills

Pollution Home Pollution Home Pollution DefinitionPollution Definition


Crop RunoffCrop Runoff

Crop runoff involves the movement of Crop runoff involves the movement of water over a surface.water over a surface.

Crop runoff becomes pollution when Crop runoff becomes pollution when harmful chemicals that are often placed on harmful chemicals that are often placed on crops are carried from the fields into crops are carried from the fields into nearby bodies of water.nearby bodies of water.



LandfillsLandfills

Landfills are used to deposit wasted Landfills are used to deposit wasted material. material.

Water pollution can occur when hazardous Water pollution can occur when hazardous material makes its way into nearby material makes its way into nearby aquifers and groundwater tables.aquifers and groundwater tables.



Water PollutionWater Pollution All human activities in which there are adverse effects All human activities in which there are adverse effects

to bodies of water. Natural occurrences such as to bodies of water. Natural occurrences such as volcanoes are typically not included as water pollution. volcanoes are typically not included as water pollution.

Possible contaminants could include organic and Possible contaminants could include organic and inorganic matter. Pollution sources range from surface inorganic matter. Pollution sources range from surface runoff to industrial discharge. runoff to industrial discharge.

Water pollution kills fish and destroys plant life. It can Water pollution kills fish and destroys plant life. It can also harm human beings, besides the fact that we are also harm human beings, besides the fact that we are consumers of fish. Water pollution can eliminate consumers of fish. Water pollution can eliminate valuable drinking water and can create sickness and valuable drinking water and can create sickness and even death. even death.



Effects of PollutionEffects of Pollution Pollution has a great impact on humans. It Pollution has a great impact on humans. It

can cause cancer, immune diseases, can cause cancer, immune diseases, allergies, and asthma. It can kill many allergies, and asthma. It can kill many other organisms, other than humans. other organisms, other than humans.

Pollution can have damaging effects to the Pollution can have damaging effects to the brain and the central nervous system. brain and the central nervous system.

Environmentally pollution can decrease the Environmentally pollution can decrease the lifespan of earth’s natural commodities such lifespan of earth’s natural commodities such as vegetation, minerals, and wildlife. as vegetation, minerals, and wildlife.

Pollution DefinitionPollution Definition Pollution HomePollution Home


Air PollutionAir Pollution

Air pollution is the presence of any Air pollution is the presence of any chemical, biological or physical matter chemical, biological or physical matter that is changes the atmosphere. that is changes the atmosphere.

Human sources include: burning of fossil Human sources include: burning of fossil fuels, automobiles, and other chemical fuels, automobiles, and other chemical additivesadditives

Natural sources: dust particles, smoke Natural sources: dust particles, smoke from wildfires.from wildfires.

Pollution HomePollution Home Pollution Definition Pollution Definition


Pollution from AutomobilesPollution from Automobiles

Automobile pollution is a very important issue Automobile pollution is a very important issue and many advancements have been made in the and many advancements have been made in the field. Scientists have created more efficient cars field. Scientists have created more efficient cars that can run on fuel that breaks down easier and that can run on fuel that breaks down easier and emits less volatile substances.emits less volatile substances.

America is dominated with automobiles and America is dominated with automobiles and almost every family has at least one.almost every family has at least one.

Although improvements have been made, this Although improvements have been made, this topic is still up for debate. Also, solutions are topic is still up for debate. Also, solutions are being sorted out to see which has the most up being sorted out to see which has the most up side. The big debate is between ethanol and side. The big debate is between ethanol and electric automobiles. electric automobiles.

Pollution Home Pollution Home


Factories and IndustriesFactories and Industries

In 1007 a total of 16,462 tons of factory In 1007 a total of 16,462 tons of factory waste were not re-used as resources.waste were not re-used as resources.

83% of total factory waste consists of 83% of total factory waste consists of liquid waste acid from the distillation of liquid waste acid from the distillation of products. products.

These liquid and gas waste products from These liquid and gas waste products from factories greatly increases the affects of factories greatly increases the affects of global warming.global warming.



Exxon Valdez Oil SpillExxon Valdez Oil Spill

One of the most devastating environmental One of the most devastating environmental disasters to occur at sea, seriously affecting plants disasters to occur at sea, seriously affecting plants and wildlife.and wildlife.

The ship carrying the oil carried 53,094,510 gallons The ship carrying the oil carried 53,094,510 gallons of oil which 10.8 million gallons were spilled. of oil which 10.8 million gallons were spilled.

Pollution Home Water Pollution DefinitionPollution Home Water Pollution Definition


Reference PageReference Page

www.unitedstreaming.orgwww.unitedstreaming.org

http://en.wikipedia.org/wiki/Exxon_Valdez_oil_spillhttp://en.wikipedia.org/wiki/Exxon_Valdez_oil_spill

http://www.spartacus.schoolnet.co.uk/http://www.spartacus.schoolnet.co.uk/IRpollution.htmIRpollution.htm

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ENVIORMENTAL PROBLEMS