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Alternative energy sources will save the world (cons (metals (non…
Alternative energy sources will save the world
cons
really expensive
metals
non renuable
current CO2
big problems
remove CO2
pros
save money
long terms
reduce pollutions
solve climate change
reduce toxins
grow power
2007-2014
solar power
15x more
wind power
3x more
decline costs
wind power
solar power
fast grow
22% world's electricity
renewable
advise banks
go renewable