scroll to top
Stuck on your essay?
Get ideas from this essay and see how your work stacks up
Word Count: 751
Energy from the sun warms the earth It also drives the earths weather and climate The earths surface absorbs the sun and radiates it back into space in the form of infrared radiation This process is referred to as the greenhouse effect About one percent of the earths atmosphere is composed of greenhouse gases Together these gases reflect enough heat back to the earth to maintain the average temperature of the atmosphere at around 60 degrees F Without the greenhouse effect the earth would be a cold uninhabitable place In comparison Mars has an average temperature of -27 degrees C The earths climate is predicted to change because human activities are altering the chemical composition of the atmosphere through the buildup of greenhouse gases Those gases are primarily carbon dioxide methane and nitrous oxide The heat trapping property of these gases is undisputed In order words it is a fact these gases hold heat Although uncertainly exists about how earths climate responds to these gases global temperatures are rising What are Greenhouse Gases Some greenhouse gases occur naturally in the atmosphere while others result from human activities Naturally occurring greenhouse gases include water vapor carbon dioxide methane nitrous oxide and ozone Certain human activities however add to the levels of most of these naturally occurring gases Carbon dioxide is released to the atmosphere when solid waste fossil fuels oil national gas and coal and wood and wood products are burned Carbon dioxide accounts for over 80 of global warming pollution Methane is emitted during the production and transport of coal natural gas and oil Methane emissions also result from decomposition of organic wastes in municipal solid waste landfills and the raising of livestock Nitrous oxide is emitted during agricultural and industrial activities as well as during combustion of solid waste and fossil fuels Greenhouse gases that are naturally occurring include hydrofluorocarbons HFCs perfluorocarbons PFCs and sulfur hexafluoride
@Kibin is a lifesaver for my essay right now!!
- Sandra Slivka, student @ UC Berkeley
Wow, this is the best essay help I've ever received!
- Camvu Pham, student @ U of M
If I'd known about @Kibin in college, I would have gotten much more sleep
- Jen Soust, alumni @ UCLA