Overview: The second appointment with "Preparing for the future", the Rai Cultura series conceived and written by Piero Angela and dedicated to the new generations, that is, to the young people who today attend Italian schools and who one day will be responsible for the society of the future. Why is the Earth warming even the oceans are swelling? How does the atmosphere work and why will hurricanes and fires increase with global warming? Piero Angela, together with a team of experts, in this episode of the program, takes viewers to discover the mechanism of the greenhouse effect and the ways to counteract it.