The atmosphere began to become contaminated because of human actions two thousand years ago, during the prosperity of the Ancient Roman Empire: it was then that a large number of lead and other harmful compounds began to enter the air.
The danger of flooding threatens more than 30 regions of Italy. This is mainly due to global climate change. More recently, scientists have voiced a time when under water can disappear Venice - one of the most unusual cities on the Adriatic coast.
Meteorologists have analyzed the temperature and atmospheric indicators that were recorded in just the past year, and concluded that 2016 had broken all previous records by the average annual temperature.