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what is a major cause of climate change
An increase in average global temperature
potential effects of global climate change, include:
o Extinction of species
o Raising sea levels due to the melting of polar ice caps
o Migration- people will move from areas suffering drought/flooding
o Decrease in crop yield for all major world crops
what is the carbon footprint
the total amount of CO2 and other greenhouse gases emitted over the full life cycle of a product, service or event.
How can our carbon footprints be reduced
-reducing emissions of carbon dioxide and methane by:
using less electricity (so using less fossil fuels or using an alternative source of electricity),
reducing the amount of travel or transportation (of either goods or people)
by planting more trees.
How can these actions be limited
-it’s more difficult/ can be more expensive
-planting trees takes away land that could be used to grow crops.
Note 
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