Alternative energy sources will save the world
burning of coal and fossil fuels
polluting the environment
speeding up global warming
planet has many natural sources
people need to discover
People need to invest
future of our planet
several alternative energy sources
replenish themselves
Solar energy
energy from the sun
doesn't put our planet at risk
the sun will be nearly every day
Wind energy
doesn't pollute the air
energy form the wind
but, no wind
no energy
offshore wind energy
wind blows stronger
more space at sea
but, expensive to build
biomass energy
form organic matter
never run out of waste
but, need to plant new trees