global warming is a fact

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Global Warming Is A Global Warming Is A Fact Fact

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Global Warming Is A Fact. Are Humans Causing Global Warming?. Climate experts linked the average increase in global temperatures since the mid-20 th century to manmade greenhouse gases 11 of the last 12 years have ranked among the warmest years ever recorded. - PowerPoint PPT Presentation

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Page 1: Global Warming Is A Fact

Global Warming Is A FactGlobal Warming Is A Fact

Page 2: Global Warming Is A Fact

Are Humans Causing Global Are Humans Causing Global Warming?Warming?

• Climate experts linked the average increase in global temperatures since the mid-20th century to manmade greenhouse gases

• 11 of the last 12 years have ranked among the warmest years ever recorded.

• Increases in carbon dioxide in ice cores are higher than many thousands of years ago.

• Extreme changes in the atmosphere have occurred in the last several decades which is around the same time we started using fossil fuels.

Page 3: Global Warming Is A Fact

Green House EffectGreen House Effect

The earths atmosphere is supposed to be The earths atmosphere is supposed to be thick enough to keep enough heat rays out thick enough to keep enough heat rays out so we don’t get to hotso we don’t get to hot

Thin enough to let some through so we Thin enough to let some through so we don’t get to cold.don’t get to cold.

We are putting gases in the atmosphere We are putting gases in the atmosphere which is making it thicker.which is making it thicker.

This keeps the heat rays in and causes This keeps the heat rays in and causes global warming.global warming.

Page 4: Global Warming Is A Fact

What We Effect On This EarthWhat We Effect On This Earth Melted Glaciers have given polar bears Melted Glaciers have given polar bears

and other arctic animals less places to and other arctic animals less places to hunt and raise young.hunt and raise young.

Insects have increased in new areas which Insects have increased in new areas which causes the spread of disease through bugs causes the spread of disease through bugs like mosquitoeslike mosquitoes

Places like Africa who are at or above the Places like Africa who are at or above the crop tolerance temperatures are predicted crop tolerance temperatures are predicted to get worse.to get worse.

Cities near the shore will be erased due to Cities near the shore will be erased due to rising sea levels.rising sea levels.

Warmer waters lead to bigger hurricanes.Warmer waters lead to bigger hurricanes.

Page 5: Global Warming Is A Fact

Before and AfterBefore and After

Argentina’s Upsala Glacier was once Argentina’s Upsala Glacier was once the biggest in South America but now the biggest in South America but now it melts at a rate of 200 metersit melts at a rate of 200 meters

Mountains have lost snow at a more Mountains have lost snow at a more rapid rate.rapid rate.

The Pasterze, Austria’s longest The Pasterze, Austria’s longest glacier is now completely glacier is now completely Grossglockner High RoadGrossglockner High Road

Page 6: Global Warming Is A Fact

Future Effects Of Global WarmingFuture Effects Of Global Warming

Hurricanes will get worse and Hurricanes will get worse and hurricanes like Katrina will be hurricanes like Katrina will be common on the coastal areas.common on the coastal areas.

In the next century the sea level is In the next century the sea level is predicted to rise between 9 and predicted to rise between 9 and 88cm.88cm.

The global temperature would The global temperature would increase by 2.5 to 10 degrees F.increase by 2.5 to 10 degrees F.

Page 7: Global Warming Is A Fact

Is It Too Late?Is It Too Late?

Some things are too late to change Some things are too late to change such as the heat which is predicted such as the heat which is predicted to rise about 3 to 6 degrees in 30 to rise about 3 to 6 degrees in 30 years.years.

We can still slow things down by We can still slow things down by starting as soon as possible.starting as soon as possible.

Our attempts to stop global warming Our attempts to stop global warming won’t be felt until many years laterwon’t be felt until many years later

Page 8: Global Warming Is A Fact

We are warmingWe are warming

Ever since we started recording the Ever since we started recording the earth’s temperature, within the last earth’s temperature, within the last 100 years the temperature has risen 100 years the temperature has risen 0.5 degrees Fahrenheit. 0.5 degrees Fahrenheit.

While just within the last 20 years While just within the last 20 years the earth’s temperature has risen the earth’s temperature has risen 0.6 degrees Fahrenheit.0.6 degrees Fahrenheit.

Page 9: Global Warming Is A Fact

What scientist have said the cause What scientist have said the cause for this warming is the continuous for this warming is the continuous amount of Co2 that is being put into amount of Co2 that is being put into the air. the air.

And since about 1736, the time of And since about 1736, the time of the Industrial Revolution, is when the Industrial Revolution, is when the amount of Co2 going into the the amount of Co2 going into the atmosphere increased.atmosphere increased.

Page 10: Global Warming Is A Fact

Co2’s affect on us Co2’s affect on us

Co2 is a greenhouse gas that takes Co2 is a greenhouse gas that takes in and absorbs and traps heat and in and absorbs and traps heat and other types of radiation that comes other types of radiation that comes from the sun. from the sun.

With all of the heat and other With all of the heat and other radiation not being able to escape radiation not being able to escape the global. Gradually it will warm up the global. Gradually it will warm up the earth.the earth.

Page 11: Global Warming Is A Fact

Continued Continued Other then being a gas that traps heat, Co2 Other then being a gas that traps heat, Co2

also acts as a trigger to start the effects of also acts as a trigger to start the effects of other kinds of gases. One for example is other kinds of gases. One for example is water vapor.water vapor.

With Co2 heating up the atmosphere, it wants With Co2 heating up the atmosphere, it wants to take in moisture from the earth. And with to take in moisture from the earth. And with that lost of moisture forces the earth to warm that lost of moisture forces the earth to warm up even more to take back in more moisture.up even more to take back in more moisture.

So now with the warmer climates, the water So now with the warmer climates, the water vapor creates clouds that are higher in the air vapor creates clouds that are higher in the air that are thinner, trap heat, and reflect more that are thinner, trap heat, and reflect more heat back to the earth.heat back to the earth.

Page 12: Global Warming Is A Fact

Effects to the polesEffects to the poles Another reason to confirm that we are Another reason to confirm that we are

warming is that of the effects of the North warming is that of the effects of the North and South pole.and South pole.

This is because Co2, when accumulating heat, This is because Co2, when accumulating heat, and other light waves tend to be more and other light waves tend to be more effective at lower temperatures. And high into effective at lower temperatures. And high into the atmosphere.the atmosphere.

So with Co2 being at its greatest collecting So with Co2 being at its greatest collecting heat at lower temperatures, it does things like heat at lower temperatures, it does things like for one melt the ice. And the amount of thick for one melt the ice. And the amount of thick ice that has been declined about 14%. So on ice that has been declined about 14%. So on average, the ice is decreasing 0.7% a year.average, the ice is decreasing 0.7% a year.

Page 13: Global Warming Is A Fact

Effect of the poles Effect of the poles continued…continued…

With the amount of ice being melted, and With the amount of ice being melted, and the ice being white, there is nothing to the ice being white, there is nothing to reflect the sun’s light back into the sky.reflect the sun’s light back into the sky.

Also with there being a lack of ice to Also with there being a lack of ice to reflect the light, the rays are able to heat reflect the light, the rays are able to heat up the surrounding water effecting up the surrounding water effecting everything there.everything there.

One thing that this effects is the wild life One thing that this effects is the wild life that lives there. One for example is the that lives there. One for example is the polar bear.polar bear.

Page 14: Global Warming Is A Fact

Continued…..Continued…..

With the polar bear they travel from With the polar bear they travel from different patches of ice everyday to different patches of ice everyday to find food. But some have to swim find food. But some have to swim father then others, and rest on the father then others, and rest on the sea ice.sea ice.

But with the ice thinning they have But with the ice thinning they have nothing to rest on, or find food, and nothing to rest on, or find food, and usually end up drowning from usually end up drowning from swimming around.swimming around.

Page 15: Global Warming Is A Fact

Melted polar capsMelted polar caps The northern ice cap is ice floating on The northern ice cap is ice floating on

water. If it melt completely the biggest water. If it melt completely the biggest change will be the salt content of the change will be the salt content of the surrounding water, it will not change the surrounding water, it will not change the sea level, as it is sitting on the water sea level, as it is sitting on the water already it would displace the same already it would displace the same amount of water it contains as ice. It will amount of water it contains as ice. It will affect the wildlife that lives on the polar affect the wildlife that lives on the polar ice cap like polar bears, and seals, but ice cap like polar bears, and seals, but will not affect us to any great extent.will not affect us to any great extent.

Page 16: Global Warming Is A Fact

Things That We Humans Things That We Humans Should Do Instead Of Not Should Do Instead Of Not

Doing Doing Climate is influenced by many Climate is influenced by many

factors, both natural and humans. factors, both natural and humans. Things that increase the Things that increase the temperature of the world are temperature of the world are trapping heat and other gases from trapping heat and other gases from the automobiles. the automobiles.

Page 17: Global Warming Is A Fact

• Power Plants helps increase in the Power Plants helps increase in the amount of radiation, the sun emits amount of radiation, the sun emits are examples of positive forcing, are examples of positive forcing, some what of a heat change and in some what of a heat change and in deification of humans.deification of humans.

Page 18: Global Warming Is A Fact

• We think as humans we live in this We think as humans we live in this world where if something is world where if something is happening to it then it’s our fault. happening to it then it’s our fault.

Page 19: Global Warming Is A Fact

• Effects from Global Warming has Effects from Global Warming has hurt our global peace in many ways hurt our global peace in many ways with others. One thing is storm with others. One thing is storm strength lending to extreme weather.strength lending to extreme weather.

Page 20: Global Warming Is A Fact

• It is us humans that created power It is us humans that created power plants and other machines that plants and other machines that releases carbon dioxide and other releases carbon dioxide and other harmful pollutants into the world. harmful pollutants into the world.

Page 21: Global Warming Is A Fact

• If there was any results to Global If there was any results to Global warming it would be sky high on warming it would be sky high on damage to the world. Saving many damage to the world. Saving many objects and keeping limited pollution objects and keeping limited pollution going up into the air and causing going up into the air and causing dangerous chemicals should be dangerous chemicals should be restricted. restricted.

Page 22: Global Warming Is A Fact

• Our climates is meant to change on Our climates is meant to change on it’s own. Not with the help of us it’s own. Not with the help of us taking the world for granted. There taking the world for granted. There are many places such as Antarctica, are many places such as Antarctica, Alaska and many other colder Alaska and many other colder climates that are warming up. climates that are warming up.

Page 23: Global Warming Is A Fact

• There has been many incidents There has been many incidents about the world coming to an end about the world coming to an end but with people smoking, not but with people smoking, not recycling, or planting any trees and recycling, or planting any trees and other helpful duties we will come to other helpful duties we will come to an end.an end.

Page 24: Global Warming Is A Fact

• The president of the united states is The president of the united states is not helping at all, he tried to ask a not helping at all, he tried to ask a country that doesn’t like America for country that doesn’t like America for more gasoline their response was no. more gasoline their response was no. It has came to our attention that It has came to our attention that Bush is not trying hard enough to Bush is not trying hard enough to save our environment.save our environment.

Page 25: Global Warming Is A Fact

• So we as a group should join in hands So we as a group should join in hands to help our world instead of to help our world instead of continually fighting. continually fighting.

Page 26: Global Warming Is A Fact

• Has it ever occur to anybody that if Has it ever occur to anybody that if you look at the temperatures from you look at the temperatures from 2000 the temperature has raised 2000 the temperature has raised dramatically. dramatically.

Page 27: Global Warming Is A Fact

• Icebergs and icy climates has been Icebergs and icy climates has been melting to its extreme advantage melting to its extreme advantage knowing this we humans still use knowing this we humans still use gases and other hot chemicals.gases and other hot chemicals.

Page 28: Global Warming Is A Fact

• There are many animals that are There are many animals that are dyeing because their colder climates dyeing because their colder climates are getting to warm for them to are getting to warm for them to stand. stand.

Page 29: Global Warming Is A Fact

• We humans also add extra gases, We humans also add extra gases, power plants, paper, cars that takes power plants, paper, cars that takes more gas then needed, Gasoline more gas then needed, Gasoline spills, Fires from cigarettes, and spills, Fires from cigarettes, and those cigarette smokers that’s those cigarette smokers that’s something they can help stop doing. something they can help stop doing.

Page 30: Global Warming Is A Fact

Global Warming Is Caused By Global Warming Is Caused By Humans Humans

• Global Warming is going to continue Global Warming is going to continue coming because as hot as it is coming because as hot as it is getting today it shows mountains getting today it shows mountains fallings and icebergs melting and fallings and icebergs melting and even major city islands sinking. even major city islands sinking.

Page 31: Global Warming Is A Fact

• We’ve been in records about how hot We’ve been in records about how hot it has gotten but it has never gotten it has gotten but it has never gotten this hot. If gases and pollution keeps this hot. If gases and pollution keeps elevating it’ll show many coastal elevating it’ll show many coastal states and country disappearing.states and country disappearing.

Page 32: Global Warming Is A Fact

• It is also said that the core of the It is also said that the core of the earth is widening. We believe that it earth is widening. We believe that it is from us humans using all of those is from us humans using all of those chemicals that doesn’t need to be chemicals that doesn’t need to be used. used.

Page 33: Global Warming Is A Fact

• We believe that if people were to We believe that if people were to help out and stop causing carbon help out and stop causing carbon dioxide in the world it may not cause dioxide in the world it may not cause a massive distruction. a massive distruction.

Page 34: Global Warming Is A Fact

• Carbon Dioxide can cause major Carbon Dioxide can cause major destruction to the world and as us destruction to the world and as us humans. It’s hard enough that when humans. It’s hard enough that when we breathe out we are breathing out we breathe out we are breathing out carbon dioxide and we are taking carbon dioxide and we are taking oxygen as we breathe in. oxygen as we breathe in.

Page 35: Global Warming Is A Fact

• Planting trees and other oxygen Planting trees and other oxygen givers can help us and saving paper givers can help us and saving paper would also help too. Keeping the would also help too. Keeping the earth safe and clean would help us earth safe and clean would help us humans. humans.

Page 36: Global Warming Is A Fact

• Recycling plastic and other goods Recycling plastic and other goods actually helps too. Without any help actually helps too. Without any help from others the world will be in the from others the world will be in the same situation for years to come.same situation for years to come.

Page 37: Global Warming Is A Fact

• We believe that humans are causing We believe that humans are causing Global Warming not helping and Global Warming not helping and abusing the earth. Not helping the abusing the earth. Not helping the world exist.world exist.

Page 38: Global Warming Is A Fact

►Human activity has been increasing Human activity has been increasing the concentration of greenhouse gases the concentration of greenhouse gases in the atmosphere ( mostly carbon in the atmosphere ( mostly carbon dioxide from combustion of coal, oil, dioxide from combustion of coal, oil, and gas.and gas.

Page 39: Global Warming Is A Fact

►Parts of Canada, Alaska, Siberia, and Parts of Canada, Alaska, Siberia, and the Antarctic have been experiencing the Antarctic have been experiencing warming well above the global warming well above the global average for the past few decades. average for the past few decades.

Page 40: Global Warming Is A Fact

►Warmer temperatures allow Warmer temperatures allow mosquitoes that transmit diseases mosquitoes that transmit diseases such as maleria to extend their ranges such as maleria to extend their ranges and increase both their biting rate and and increase both their biting rate and their ability to infect humans.their ability to infect humans.

Page 41: Global Warming Is A Fact

►Spring now arrives earlier in many Spring now arrives earlier in many parts of the world. Evidence of this parts of the world. Evidence of this comes from earlier dates for plant comes from earlier dates for plant blooming and leafing and earlier blooming and leafing and earlier animal egg laying. An earlier spring animal egg laying. An earlier spring may disrupt animal migration and may disrupt animal migration and alter competitive balances among alter competitive balances among species. species.

Page 42: Global Warming Is A Fact

►Plants and animals generally react to Plants and animals generally react to consistently warmer temperatures by consistently warmer temperatures by moving to higher latitudes and elevations. moving to higher latitudes and elevations. Recent studies reveal that some species Recent studies reveal that some species already have started to shift their ranges already have started to shift their ranges consistent with warming trends. Many consistent with warming trends. Many populations may become more vulnerable populations may become more vulnerable to declining numbers or extinction if to declining numbers or extinction if warming occurs faster than they can warming occurs faster than they can respond. respond.

Page 43: Global Warming Is A Fact

►A warmer climate will bring an A warmer climate will bring an increase in precipitation world wide increase in precipitation world wide especially during winter and in mid to especially during winter and in mid to high latitudes. In addition more high latitudes. In addition more precipitation is expected to fall in precipitation is expected to fall in downpours and heavy snowstorms downpours and heavy snowstorms leading to increased flooding human in leading to increased flooding human in land use.land use.

Page 44: Global Warming Is A Fact

►As the climate heats up droughts are As the climate heats up droughts are expected to become more frequent expected to become more frequent and severe in some locations. and severe in some locations. Sustained drought makes wild fires Sustained drought makes wild fires more likely , and crops and trees more more likely , and crops and trees more vulnerable to pest infestations and vulnerable to pest infestations and diseases.diseases.

Page 45: Global Warming Is A Fact

Some Facts of Global Some Facts of Global WarmingWarming

In the In the 2020thth

century, century, the last the last

two two decades decades

have have been been the the

hottest hottest on on

recordrecord

Global warming causes some

areas to heat up

and other areas to

cool down.

Page 46: Global Warming Is A Fact

Global Warming MythsGlobal Warming Myths

Global warming will no Global warming will no longer be a big problem longer be a big problem as the Ozone layer as the Ozone layer shrinks.shrinks.

Global warming and the Global warming and the excess CO2 in the air will excess CO2 in the air will benefit us, because they benefit us, because they reduce cold-related reduce cold-related deaths and help crop deaths and help crop growth. growth.

Page 47: Global Warming Is A Fact

A Few Concerns of Global WarmingA Few Concerns of Global Warming

That America makes up 25% of the That America makes up 25% of the CO2 pollutants, which is more than CO2 pollutants, which is more than China, India and Japan together.China, India and Japan together.

How can the pollutants be cut to How can the pollutants be cut to prevent Global Warmingprevent Global Warming

Page 48: Global Warming Is A Fact

A Global Good-ByeA Global Good-ByeGoodbye Baseball (No Ash tree)Goodbye Baseball (No Ash tree)

Goodbye Fly Fishing (No Rainbow Trout)Goodbye Fly Fishing (No Rainbow Trout)

Goodbye Polar Bears (Habitat melting)Goodbye Polar Bears (Habitat melting)

Goodbye Gray Whales (Water temp rising)Goodbye Gray Whales (Water temp rising)

Goodbye Penguins (Warmer waters)Goodbye Penguins (Warmer waters)

Goodbye Walrus (Pup abandonment)Goodbye Walrus (Pup abandonment)

Page 49: Global Warming Is A Fact

The media most extreme effects of The media most extreme effects of GLOBAL WARMINGGLOBAL WARMING

55thth deadliest- Spread of disease deadliest- Spread of disease44thth deadliest- More hurricanes and deadliest- More hurricanes and warmer water temperatureswarmer water temperatures33rdrd deadliest- Increased chance of deadliest- Increased chance of intense droughts and heat wavesintense droughts and heat waves22ndnd deadliest- Many economic deadliest- Many economic consequencesconsequences11stst deadliest- Melting of the Polar deadliest- Melting of the Polar Ice CapsIce Caps

                                  

   

Page 50: Global Warming Is A Fact

More effects of Global WarmingMore effects of Global Warming

Sea levels will rise to new heightsSea levels will rise to new heights

Precipitation increase worldwide Precipitation increase worldwide

Ice melting at the earths polesIce melting at the earths poles

Large glaciers melting around the Large glaciers melting around the worldworld

                           

          

Page 51: Global Warming Is A Fact

The scientist theoriesThe scientist theories

Warming could lead to the increased Warming could lead to the increased drought frequency, that the West drought frequency, that the West experienced over the last 30 years. Also experienced over the last 30 years. Also 1999-2002 was record for one of the worst 1999-2002 was record for one of the worst drought periodsdrought periods

             

             

Page 52: Global Warming Is A Fact

Continued theoriesContinued theories

National annual precipitation has National annual precipitation has increased between 5 and 10 percent increased between 5 and 10 percent since the early 20th century.since the early 20th century.

The IPCC reports that intense rain The IPCC reports that intense rain events have increased in frequency events have increased in frequency during the last 50 yearsduring the last 50 years

Page 53: Global Warming Is A Fact

Health Concern theoriesHealth Concern theoriesA large portion of North America A large portion of North America experienced a severe heat wave in July experienced a severe heat wave in July 2006, which contributed to the deaths of 2006, which contributed to the deaths of at least 225 people.at least 225 people.

Also Studies have found that a high level Also Studies have found that a high level of carbon dioxide had an increase in the of carbon dioxide had an increase in the growth of weeds, whose pollen triggers growth of weeds, whose pollen triggers allergies and asthma.allergies and asthma.

Page 54: Global Warming Is A Fact

Scientific theories that are presentScientific theories that are present

According to NASA, the Polar ice cap According to NASA, the Polar ice cap is melting at an alarming rate of nine is melting at an alarming rate of nine percent per decade. And the Arctic percent per decade. And the Arctic ice thickness has decreased 40 ice thickness has decreased 40 percent since the 1960s percent since the 1960s