TRAFFIC
PROBLEM
I'm
writing because I was at Barcelona city with some friends last
weekend and the amount of pollution which we saw in the sky was
unbelievable. I take one photo, the sky was grey...
I
think there are one or two reasons for this. Firstly, people use cars
of fuel and this produce a lot of pollution, which is bad for the
atmosphere. Secondly, there are many factories which produce
combustible gases and that is bad for the atmosphere too.
We
must do something about this situation. Maybe there isn't much
pollution in other places. I don't know, but we must definitely do
something here if we want to stop the pollution.
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