The Greenhouse effectThe greenhouse effect is a natural process that warms the Earth’s surface. The problem humankind now face is that activities by people (such as burning fossil fuels and land clearing) are increasing the concentrations of greenhouse gases. This is the enhanced greenhouse effect, which is contributing to warming of the Earth at an alarming rate.
http://wwf.panda.org/about_our_earth/aboutcc/ http://www.climatechange.gov.au/greenhouse-effect |
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Changing levels of C-based gases in the atmosphere
How is the climate warming above naturally expected levels?
Global warming is a direct result of too much carbon dioxide
in the atmosphere which acts as a blanket by trapping heat and warming the
planet. This carbon dioxide is produced by the burning of fossil fuels and
deforestation. These procedures are called greenhouse gas concentrations.
Increasing greenhouse gas concentrations is a reason why the climate is warming above naturally expected levels. These concentrations will continue to increase unless our annual emissions decrease substantially. Greenhouse gas concentrations increase the earths average temperature, influence the patterns and amount of precipitation, reduce ice and snow cover, raise sea levels and increase the acidity of the oceans.
Greenhouse gases cause the earth to warm as they stay in the atmosphere for long periods of time. Even if emissions are stopped increasing, greenhouse gas concentrations will still continue to increase and remain elevated for hundreds of years. This is because oceans (store heat) take many decades to fully respond to higher greenhouse gas concentrations. The oceans response will continue to impact climate over the next couple of decades to hundreds of years.
Increasing greenhouse gas concentrations is a reason why the climate is warming above naturally expected levels. These concentrations will continue to increase unless our annual emissions decrease substantially. Greenhouse gas concentrations increase the earths average temperature, influence the patterns and amount of precipitation, reduce ice and snow cover, raise sea levels and increase the acidity of the oceans.
Greenhouse gases cause the earth to warm as they stay in the atmosphere for long periods of time. Even if emissions are stopped increasing, greenhouse gas concentrations will still continue to increase and remain elevated for hundreds of years. This is because oceans (store heat) take many decades to fully respond to higher greenhouse gas concentrations. The oceans response will continue to impact climate over the next couple of decades to hundreds of years.
This image has links with how the climate is warming above
unnatural expected levels as it shows a human hand holding earth that is on
fire, suggesting that humans are responsible for the damage that the greenhouse
gases have caused to the earth. This photo also shows how once the earth is
damaged, it can never really be the same again, just like what the greenhouse
gases have done.