Sultan althani
English 7b
5 March 2012
Selected source list for environment media project
Green house gasses
Carbon dioxide is released into the atmosphere by the burning of
solid waste, wood and wood products, and fossil fuels (oil, natural
gas, and coal).
The temperatures change naturally over the past 50 years the average
global temperature has increased at the fastest rate in recorded history.
And experts think the movement is increasing the 10 hottest years on
record have all occurred since 1990. Scientists say that unless we
control global warming emissions, average U.S. temperatures could be
3 to 9 degrees higher by the end of the century.
The world will get hotter and hotter snow in the Antarctica will melt and
the water will go to the sea and sea level will rise and all of u s will
drown and most animals that live on ice will die like the polar bear etc
wont find ice to hunt and live on and now there are not a lot left.
• Carbon dioxide is released into the atmosphere by the burning of
solid waste, wood and wood products, and fossil fuels (oil,
natural gas, and coal).
Many things cause global Warming. The causes are split up into two groups,
man-made or anthropogenic causes, and natural causes. Man-made Causes
Pollution is one of the biggest man-made problems. 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.
For over the past 200 years, the burning of fossil fuels, such as coal
and oil, and deforestation have caused the concentrations of heattrapping "greenhouse gases" to increase significantly in our
atmosphere. These gases prevent heat from escaping to space,
somewhat like the glass panels of a greenhouse.
Greenhouse gases are necessary to life as we know it, because they
keep the planet's surface warmer than it otherwise would be. But,
as the concentrations of these gases continue to increase in the
atmosphere, the Earth's temperature is climbing above past levels.
According to NOAA and NASA data, the Earth's average surface
temperature has increased by about 1.2 to 1.4ºF in the last 100
years. The eight warmest years on record (since 1850) have all
occurred since 1998, with the warmest year being 2005. Most of the
warming in recent decades is very likely the result of human
activities. Other aspects of the climate are also changing such as
rainfall patterns, snow and ice cover, and sea level.