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Global Warming

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on 9 January 2014

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Transcript of Global Warming

Global Warming
Graph # 1
Climate change is the lasting change in the distribution of weather patterns over periods ranging from decades to millions of years.
Climate change is caused by , variations in solar radiation received by Earth, plate tectonics, and volcanic eruptions.Human activities have also been identified as significant causes of recent climate change,known as "global warming".
Climate change is caused by the growing heat-trapping gases in the atmosphere,known as “greenhouse gases.” The increase of carbon dioxide, methane, and other greenhouse gases has many causes, but most of the increase results are from human activities, such as deforestation, pollution, and burning fossil fuels
.The climate plays such a major part in our planet's environmental system that even small changes have huge impacts that are complex.
Climate change affects people and nature in a lot of ways, and it often increases threats that have already put pressure on the environment and our surroundings.
Though climate change isn't new, the speed with which the climate is changing is.
. Global warming is caused by releasing what are called greenhouse gases into the atmosphere. The most common greenhouse gas is carbon dioxide.
Don't Wait
Answers [part 1]
Start Caring For Your World
Global Warming Matters
Start Now
Preservation of our environment is not liberal or a conservative challenge, its common sense
This graph shows that the more the population grows in countries, the more they loose forests.The graph does not show that it is because of people polluting but it is probably because of human based activities like burning coal and releasing gases into the atmosphere like greenhouse gases.A greenhouse gas is a gas that traps heat.That is one of reasons why there are less forests and when a tree sucks up a greenhouse gas like carbon dioxide it takes that gas and turns it into clean air and releases it.But if there is less forests,there will be less trees,which means there will be less clean air and that means it will be harder to breath.In Africa,population increased by about 8.5% since 1990,but the amount of forests decreased by 9% since 1990.
Graph # 2
Graph # 3
Graph # 4
This graph introduces 2 ocean currents.El Nino and La Nina. An ocean current is the steady flow of ocean water in a prevailing direction.El Nino is a warm ocean current and La Nina is a cold ocean current.La Nina is claimed to prevent clouds from forming,therefore lowering precipitation rates and El Nino brings air masses,increases humidity,which increases the number of clouds,which leads to more precipitation. In this graph it shows the increase and decrease of temperature in degrees Celsius,from 1950 to 2012 for El Nino and La Nina.In 2010,the temperature for El Nino,the warm ocean current,increased to more than 0.6 degrees Celsius.In about 1956,La Nina,the cold ocean current decreased to more than minus 0.1 degrees Celsius.

This graph shows the percentage
of the increase in the amount of carbon dioxide in the atmosphere,
from 1700 to 2000.Carbon dioxide is a greenhouse gas,a gas that traps heat.It is caused by human based activities.In the graph,it shows that in the 1700's the percent of carbon dioxide in the atmosphere was 0.028%.But,it increased to more than 0.035% in 2000.The difference was about 0.007%.This means that as the years passe,there were more and more human based activities,which caused more carbon dioxide to be released into the atmosphere,as the years grew.An example of a human based activity is driving a car, it releases carbon dioxide into the air and a lot of people drive cars everyday,so there must be a lot of carbon dioxide in the air,almost every day.

This graph shows how the global temperature has increased since 1881 to 2010. On the graph there are 3 colors for the bars in the bar graph.Blue,green,and orange. The blue bars probably mean the temperature is to low,the green bars probably mean the temperature is medium or okay,and the orange bars probably mean the temperature is to high.From 1881 to 1890 the global temperature was 13.68 degrees Celsius.In 2001 to 2010,the temperature increased to 14.47 degrees Celsius.The temperature increased by 0.79 degrees Celsius since 1881,when it was 2010.
Predictions and solutions
Graph # 5
This graph shows how much carbon dioxide is in the atmosphere by year.
Carbon dioxide is a greenhouse gas,a gas that traps heat.Carbon dioxide is also the most common greenhouse gas in the atmosphere caused by humans.In the graph you can see over the years,the amount of carbon dioxide has increased more and more.The line of dots goes higher and higher and you can see as the years go by the dots also get closer to each other more and more.In about 1765,the amount of carbon dioxide in parts per million were about 280 and in about 1980 to 1990,the amount of carbon dioxide in the air was 312 in parts per million.You can see it increased massively.
Arctic ice is rapidly disappearing, and the region may have its first completely ice-free summer by 2040 or earlier. Polar bears and indigenous cultures are already suffering from no ice and lesser and lesser sea
There is more carbon dioxide in the atmosphere today than at in the last 800,000 years
Heat waves caused by global warming present greater risk of heat-related illness and death, mostly among people with diabetes who are old or very young
Consequences of global warming are drought, hurricanes, fires, and the polar caps being melted
Without the greenhouse effect, the average surface temperature on Earth would be -180 C ,than the +150 C that has nurtured the development of life
Global warming raises sea levels, and that could threaten cities in a number of states and sea levels have risen about seven inches in the last 100 years, which is more than in the previous 2,000 years combined
" Modern technology owes ecology an apology " -Unknown
“Those myths about Zeus and Hercules were always so real to me; I was crushed to discover that Mt. Olympus has been overshadowed by global warming.” - Bauvard
“Global warming is by its very nature a threat, but it is a deadly threat only because it fails to trigger the brain's alarm. It leaves us sleeping in a burning bed.” - Dan Gilbert
If global warming affects us now,how will it affect us in the future ?
How has global warming changed over the years?
Does water vapor contribute to global warming?
Does carbon dioxide connect to us as humans in any way?
If technology advanced more,would global warming change?
What would be the difference between now and the future for global warming?
Global warming could effect us severely in the future.If it gets too hot from global warming the amount of heat could pressure ,the elderly,and small children.It could also cause a new ice age.If the melting polar ice caps and the melting glaciers from Greenland,flows into the northern Atlantic, it will shut down the Gulf Stream, which keeps Europe and northeastern North America warm.The Gulf steam is an strong warm ocean current.An ocean current is the flow of ocean water that goes in one direction.
In 2001,reports said it was "likely" that the rise in temperatures over the past half-century was due to humans. The 2007 report bumped this up to "very likely." And the 2013 report says that it's "extremely likely" that humans are responsible for more than half that warming, a more than 95 percent chance.Global warming has changed over the years.
Water vapor in the Earth’s climate system is by the short time it stays in the atmosphere and actively traps heat. While extra CO2 from factories or airplanes can stay in the atmosphere for centuries, extra water vapor will only stay a few days before raining down as water.
Our body needs oxygen to live. Our lungs breathe in the oxygen, the oxygen is carried through our body by the blood stream. The carbon dioxide is also carried through the blood stream and put back to the lungs to be exhaled.
Answers [part 2]
If technology advanced it could create more of a risk with global warming.It could,because technology could somehow create some new invention that is not good for the Earth and releases carbon dioxide.It could also impact global warming in a good way because scientist with advanced technology can find a way to resolve global warming.
The difference between now and the future for global warming is that now we don't have a solution for global warming yet.And in the future we could have increased global warming and made it worse or scientist could have found a solution to stop global warming.
I predict that global warming will cause a small ice age for a few years in the future.
I predict this because when the polar ice caps and the Greenland glaciers melt it will block out the Gulf stream.The Gulf stream is an strong warm ocean current that passes by North America and Europe,and it also changes the climate for Europe making it hotter than usual.If cold water melts into it,it could block out the current or change the climate making it to cold causing an small ice age.
One solution is to help stop global warming,polluting and to plant more trees etc. so we can stop ice caps and glaciers from melting and prevent the next ice age from occuring.Everyone has to do there part.
By: Ali and Musab 7e
Global warming by Parks,and Peggy J
Global warming : a very short introduction by Maslin, Mark
Global warming : the causes, the perils, the solutions by Walsh, Bryan
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