For decades the international scientific community warned about the likely negative impacts of human activities on the equilibrium of ecosystems and global climate. Today it has been proved that the cause of global warming, which has been observed over the last fifty years, is anthropogenic, rather than natural. The weather events that occur (recurring droughts, frequent flooding, high winds, heat waves, rising sea levels, among others), initially predicted by scientists to occur at the end of the 21st century, is already becoming more frequent in several regions of the world with serious consequences for the survival of many societies.
