Hanging weather patterns across the world Narrowed Topic: Human Activity

Topic: Changing weather patterns across the world
Narrowed Topic: Human Activity, Land usechanges and increased concentration of green house gases such as carbon dioxide are factors that contributes to global warming

I. Human Activity is the main contributor to global warming
A. The main human activity that contributes to global warming is the burning of fossil fuels ( coal, oil and natural gas) and the clearing of lands)
a. Use a example or illustration
b. Support Capital A

B. The burning of gasoline by auto mobile (human driving their cars) emits carbon dioxide
that contributes to global warming.

a. Support capital B
b. Support using example and illustration

II. Land use changes contributes to Global Warming
A. Clearing land for agriculture use leads to carbon dioxide emission
a. Use example to support capital A
b. Support A

B. I DON T WHAT ELSE TO LOOK AT UNDER LAND USE CHANGE

III. Increased concentration of greenhouse gases in the atmosphere leads to global warming
A. Carbon dioxide is the main green house gas that cause global warming

a) Cutting down trees or deforestation contributes to green house effect.
b) Support A

B. Methane contributes to global warming by holding infrared radiation near Earth s surface. The way that methane build up is leaks in methane pipeline, the decay of landfill and certain farming methods such as rice growing.