This valley is surrounded by mountains on different sides, which acts like a trap for polluted air by decreasing air flow. The poor air quality is also magnified by the exhaust from the cars that people drive.
The causes of pollution are due to a mix of human and geographical reasons, which means there are only some things that can be done to reduce it. Italy is part of an alliance called the European Union (E.U.), in which countries in Europe make economic and political plans together and collaborate with one another. The E.U. has been promoting electrical cars to help stop car emissions. The E.U. also has restrictions on the amount of emissions that factories can release into the air. Since Italy is in the E.U., it must follow these rules. Italy also has a really good waste removal program, with distinct bins for each type of garbage, which can also help reduce pollution. Pollution is a big problem, and this means there must be big changes. One thing people can do is demand that the government make stricter rules for factories. People can also recyle carefully, to make sure that as many throwaway items as possible can be used again!
