Cuba was the only country in the world to reach a sustainable development, because the country covers their present needs without compromising the ability of future generations to meet their own needs. Cuba demonstrates and makes it possible to imagine future radical possibilities that can be used to analyze and challenge the unsustainable paradigm that presently dominates the world. Cuba is a “real world” socialist country that since the 1990s has had a fundamentally different relationship with the environment than capitalist and past