The document discusses how climate change is impacting the world. It notes that scientific studies show that global temperatures have risen rapidly in recent years due to increases in greenhouse gas emissions and depletion of the ozone layer from human activity since the Industrial Revolution. This global warming is causing more extreme weather events and natural disasters. While climate change affects societies and economies, the main driver is human emissions of carbon dioxide and other heat-trapping gases that are enhancing the greenhouse effect and warming the planet. There is an urgent need for countries to cooperate and reduce their greenhouse gas emissions to mitigate the risks of climate change.

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Liang Wu
Professor Harold Blanco
FYS100
20/6/14
Human are Impacting Climate Change
Climate change always been a big issue among the world. The latest studies shows that
global warming cause a lot of natural disaster, such as water flood, hurricane, sandstorm, and
tsunami. Climate change become a large threat to world. Scientific studies show that temperature
increased rapidly recent years, and temperature increasing means challenging for human.
Temperature warming has a negative influence to society. For example, according to the U.S.
National Council, temperature increase will cut global crop yields, rise rainfall during heavy
storms, reducing flows of some river, increasing wildfire in west part of America. The situation
of the world become really serious. The effect of climate change is just one part of the iceberg.
Climate change has great impacting on environment, climate change lead to pest, rising sea
levels, land desertification, anoxia. On another hand, climate are impacting economy of society,
for example, climate may influence the agriculture. Analysis by scientists suggests that global
warming may change the atmospheric circulation, and then it will alter the global rainfall
distribution and the surface soil moisture of each continent. As a result, the plant on the earth
would effect, as well as the crops. World is approaching environmental tipping points due to
climate change. Studies indicates that climate change is man-made. Furthermore, although there
are countless reason for climate change, but scientist points out that the main reason of climate

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change stem from greenhouse gas emissions and ozone depleting.
Scientific studies shows that greenhouse gas emissions and ozone depleting is one of the
most important reason of climate change and global warming. After the industrial revolution,
great changes have taken place in the human mode of production. At the same time, it also has a
great influence on human’s life, the civilization open a new page. Everything has two sides,
although industrial revolution promoted the development of the world, but it brought bad effect
for the environment. Peng’s (2014) studies found the following:
Variations in the whole terrestrial carbon cycle are accompanied with increasing atmospheric
CO2 concentration and climate change. The physical climate can influence the terrestrial carbon
storage and the carbon exchange between atmosphere and land, and the sequent changes in
atmospheric concentration of CO2 simultaneously affect the physical climate system (p. 1).
Humans are releasing heat-trapping gases like carbon dioxide into the atmosphere in
recent decades. With the increasing of carbon dioxide levels in the atmosphere, the atmosphere
block the heat radiation of the earth. As a result, the temperature increased, and it leads to global
warming. On other side, the emissions of greenhouse gas do great damage to ozone. As
Mclandress (2011) asserts, “The latter means that tropospheric changes cannot be
unambiguously attributed to ODS changes, since the observed ozone includes the impacts of
climate change, as well as natural variability.” (p. 1851) Destruction of ozone will result in
global warming because heat will come from the sun through the gaps in our depleting ozone
layer. All in all, human become the chief culprit of climate change.

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The world is approaching dangerous due to climate change. Science shows that rising
concentrations of heat-trapping greenhouse gases in the earth’s atmosphere and depletion of
ozone are the main reason of climate change. At the same time, the greenhouse gas also heat the
planet, and the global warming cause extreme weather events on the earth. As a result, political
leaders realize the climate change become a big issue, and they decide to solve this problem.
Developed countries have been negotiating with each other since the early 1990s to reduce their
emissions of greenhouse gas. After failed to decrease the total emissions of all members,
developed countries are working on a new treaty, and this treaty include developing countries.
In conclusion, climate change become a clamant issue. Climate change result in many
extreme natural disaster. If earth continue to warm at current rates, it will cause serious risk to
human. For instance, record-breaking drought and wildfires in Australia, rapidly melting glaciers
and storm. In addition, climate change influence many part of human society, it hinder the
economic growth, become serious potential health problem of human, destroy the environment.
Some climate experts say the world has missed the chance to stabilize it, but both developed and
developing countries were try to solve this issue by reducing the emissions. In addition, everyone
live in this world have the responsibilities to reduce emission of carbon, because the world is our
home.

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Work Cited
McLandress, C., Shepherd, T. G., Scinocca, J. F., Plummer, D. A., Sigmond, M., Jonsson, A. I., &
Reader, M. (2011). Separating the Dynamical Effects of Climate Change and Ozone Depletion.
Part II: Southern Hemisphere Troposphere. Journal Of Climate, 24(6), 1850-1868.
doi:10.1175/2010JCLI3958.1
Peng, J., Dan, L., & Huang, M. (2014). Sensitivity of Global and Regional Terrestrial Carbon
Storage to the Direct CO2 Effect and Climate Change Based on the CMIP5 Model
Intercomparison. Plos ONE, 9(4), 1-17. doi:10.1371/journal.pone.0095282