GLOBAL WARMING
The atmosphere has a natural supply of "greenhouse gases“
They capture heat and keep Earth warm enough for us to live on.
Without the greenhouse effect
the planet would be an uninhabitable, frozen wasteland.
Over the past 300 years, people started emitting large amounts of greenhouse gases
More and more fossil fuels are being burned More and more fossil fuels were burned fossil fuels are being burned
to run our cars…
trucks Trucks
Planes Planes
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