The best for the end, the confusion that cars are the greatest
reason for climate change. They are not. Cows can be
considered worst for the environment, they produce
something called methane, which is a type of greenhouse gas,
like carbon dioxide, only 23 times more powerful than it. 100
kg of methane would be 2,300 kg of CO2 per year. With 2,300
CO2 kg a car could drive for 12,500 km each year (7,800 miles).
So if there are 1.2 billion cars (as of july 2014), and 1.5 billion
cows today, that would be 3,450,000,000,000 kg of Co2 a the
cows produce, and supposing that all cars ride 7,800 miles per
year, then they would make 2,760,000,000,000. The numbers say it
all, it is not