The Causes of Global Warming
Global warming is caused by several things, which
include man-made or anthropogenic causes, and global warming is also caused by natural
causes.
Natural Causes
Natural causes are causes that are created by nature. One natural
cause is a release of methane gas from arctic tundra and wetlands. Methane is a greenhouse
gas and a very dangerous gas to our environment. A greenhouse gas is a gas that traps heat
in the earth's atmosphere. Another natural cause is that the earth goes through a cycle of
climate change. This climate change usually lasts about 40,000 years.
Man-made Causes of Global Warming
 Man-made causes probably do the most damage to our planet. There are many
man-made causes of global warming. Pollution is one of the biggest man-made problems.
Pollution comes in many shapes and sizes. Burning fossil fuels is one thing that causes
pollution. Fossil fuels are fuels made of organic matter such as coal, or oil. When fossil
fuels are burned they give off a green house gas called CO2. Also, mining coal and oil
allows methane to escape. How does it escape? Methane is naturally in the ground. When
coal or oil is mined you have to dig up the earth a little bit. When you dig up the fossil
fuels you dig up the methane as well letting it escape into the atmosphere.
Another major man-made cause of Global Warming is population. More people means more food,
and more methods of transportation. That means more methane because there will be
more burning of fossil fuels (if you're into gas burning cars like our planet is), and
more agriculture. If you've been in a barn filled with animals and you smelled something
terrible, you were smelling methane. Another source of methane is manure. Because more
food is needed to feed the population we have to raise food. Animals like cows are a
source of food which means more manure and hence more methane. Another problem with the
increasing population is transportation. More people means more cars, and more cars means
more pollution. Also, many people have more than one car. There are definitely ways of
raising animals and farming that use no manure and no methane. Once we realized the
problem we should have stopped immediately using manure. Instead we choose to continue
killing the planet. We are a very stubborn race.
Since CO2 contributes to global warming, the increase in population makes the problem
worse because we breathe out CO2. Also, the trees that convert our CO2 to oxygen are being
cut down because we're using the land that we cut the trees down from as property for our
homes and buildings. We are not replacing the trees (trees are a very important part of
our eco-system), so we are constantly taking advantage of our natural resources and giving
nothing back in return.
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