ripristino della natura

Some scientists from the National Autonomous University of Mexico (UNAM), in collaboration with local farmers, are promoting a program to restore the chinampas in the Xochimilco wetland, south of Mexico City.The chinampas are delicious small artificial islands created by the Aztecs, a sort of floating farms that play a fundamental role in the identity of Xochimilco, an area of ​​lakes and swamps that has survived urbanization and the expansion of industrial agriculture.The objective of the initiative is to preserve the chinampas system and all living beings that depend on it.A system which, in 1987, was declared a World Heritage Site by UNESCO precisely because of its cultural importance and ecological value. The chinampas, once used only to grow vegetables and leafy greens, are now largely abandoned or transformed into, for example, football fields and restaurants.In 2018, FAO data revealed that only 17% of the 20,922 chinampas it was still cultivated in the traditional wa...

According to the WWF report “People, cities and nature.Renewing the urban environment and improving our health", released in September this year, protecting and increasing greenery in cities is of fundamental importance if we want to preserve people's well-being and life.In fact, some studies show how increasing overall greenery could avoid up to almost 43,000 deaths per year in European cities alone, as well as bringing environmental, psychological, social and economic benefits.The Relationship of the WWF, which is based on numerous scientific studies, starts from the assumption that «the current model of urban expansion is no longer sustainable» and that the cities are the focal point on which action must be taken urgently to try to combat climate change.This is because in About 55% of the world's population lives in urban centers (75% in Europe) and is produced over 70% of carbon emissions and more than 50% of waste, are consumed between 60% and 80% of the ene...