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Climate Change

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Emma Stewart

on 25 September 2013

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Transcript of Climate Change

Climate Change

The Debate
The 'True Case'
The term Anthropogenic describes an effect or object resulting from human activity. Therefore Anthropogenic climate change refers to the production of greenhouse gases emitted by human activity. Scientists are convinced that human activity has increased the proportion of greenhouse gases in the atmosphere
Non-Anthropogenic, in terms of climate change means that is caused, not by humans, but by nature. That it is a naturally occurring process in which humans play no blame.
There are a number of natural factors responsible for climate change. Some of the more prominent ones are continental drift, volcanoes, ocean currents, the earth's tilt, and comets and meteorites.
Main Points of the Debate
Some people believe that-
Climate change is caused by human activities and believe it is a serious threat to our society, economically, socially, politically, and action must be taken immediately to try to lessen it's effects.
Others believe that-
Climate change to be caused naturally and any actions taken in response to it will be harmful to the economy and therefore to society.
These are the extreme viewpoints.
There are many who believe somewhere in the middle of these two points when it comes to climate change
For example "it's happening, but it is not a threat", or "it can lead to minor problems, so let's find a way to adjust",
and equally many who simply do not have an opinion.

Based on my findings I have concluded that the real cause of climate change is anthropogenic, that it is caused by humans, even though nature is a contributing factor humans have definitely made climate change worse and occur at a faster pace. Ever since the world started adapting and developing we have been producing more and more carbon emissions which has led to an increase in the global temperature.
Contributors to Climate Change
The chart shown next shows the causes of global warming over the past 50-65 years, according to six studies reviewed by 'Skeptical Science', that used a variety of methods to reach their conclusions. The human contributions are shown on the left and natural contributions are shown on the right. As you can see, in many cases the natural factors actually contribute to global cooling, which is why some of the bars on the left show human contributions to be more than 100%, as they more than counterbalance the naturally occurring cooling trend.
You can reduce car emissions by leaving the car at home and walking to the shops, or to work or use public transport. Secondly you can also reduce energy expenditure in your home by turning of lights and appliances when you are not using them, replace regular bulbs with compact florescent bulbs, insulate your home and reduce your heating and cooling bills, switch to ‘green energy’ or solar power for your electricity needs.
Reduce your ‘carbon footprint’ when you shop by buying local and seasonal food produce to reduce energy use in transport and storage, buying items with minimal packaging whenever possible.
Finally recycle as much waste as you can and compost your vegetable scraps.
In conclusion...
Anthropogenic climate change is a change in climate due to human activities. Non-anthropogenic climate change is a change due to natural effects, such as continental drift, volcanoes, ocean currents, the earth's tilt, and comets and meteorites. Let's look at them in a little detail. Based on my research I have concluded that nature is not the main cause of this climate change, even though it is a contributing factor. This climate change is, in fact, caused by humans.
Since the beginning of the 20th century, scientists have been observing a change in the climate that can not be attributed to any of the ‘natural’ influences of the past only. This change in the climate, also known as global warming, has occurred faster than any other climate change recorded by humans. Science suggests that to counteract the human contribution to climate change (which will counteract the effect of global warming to a certain extent), we should reduce carbon dioxide and other greenhouse gas emissions.

Climate change will and is currently hurting the economy. The cost to 'fix' or reduce climate change will be extensive, but on the other hand the cost of climate change without attempts to reduce it may be even more pricy. The effects of climate change such as droughts, floods and sever storms can also damage the global economy.
Climate Change is a change in the components of climate, such as, precipitation, atmospheric pressure or winds over time.

The Real Cause
Carbon Dioxide
This graph, which is based on the comparison of atmospheric samples contained in ice cores and more recent direct measurements, provides proof that atmospheric carbon dioxide has increased. Since the Industrial Revolution the amount of CO2 has spiked significantly. During this period of time the world has become more advanced and efficient with inventions that, when they run, produce green house gases.

The Greenhouse Effect
The greenhouse effect is a natural process that warms the Earth’s surface. When the Sun’s energy reaches the Earth’s atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases.
Greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, ozone and some artificial chemicals such as chlorofluorocarbons (CFCs).
The Greenhouse Effect Cont.
The problem we now face is that human activities – particularly burning fossil fuels (coal, oil and natural gas), agriculture and land clearing – are increasing the concentrations of greenhouse gases. This is the enhanced greenhouse effect, which is contributing to warming of the Earth.
Anthropogenic Effects
Since the industrial revolution, human activity has increased the amount of greenhouse gases in the atmosphere (shown in the graph to the right). The increased amount of gases which absorb heat, has directly lead to more heat being retained in the atmosphere and thus an increase in global average surface temperatures. This change in temperature is known as global warming.
"What Are the Real Causes of Global Warming?" Triple Pundit RSS. N.p., n.d. Web. 24 Sept. 2013.
"Anthropogenic Climate Change." Global Greenhouse Warming. N.p., n.d. Web. 24 Sept. 2013.

"Climate Change: Anthropogenic or Not?" AITSE. N.p., n.d. Web. 24 Sept. 2013.
"Climate Science Glossary." Skeptical Science. N.p., n.d. Web. 24 Sept. 2013.
"Evidence." Global Climate Change. N.p., n.d. Web. 24 Sept. 2013.
"9.7 Combining Evidence of Anthropogenic Climate Change." 9.7 Combining Evidence of Anthropogenic Climate Change. N.p., n.d. Web. 24 Sept. 2013.
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