Without respect for the planet, the management of its resources, and attention to future generations, it is not possible to imagine a sustainable tomorrow. In this scenario, if it is true that the Earth is not an inheritance received from our ancestors, but a loan to be returned to our children, everyone (from international and national governance to public and private entities, to the many sectors of industry, to companies, to ordinary people) is called upon to make a contribution, promoting virtuous, responsible, sustainable behaviour. Governments (particularly within the European Union) are developing green transitions, planning decarbonisation processes and aiming for increasingly digital and circular economies. Economist Jeffrey D. Sachs predicted in 2006 that our era will be dominated by the 'geopolitics of sustainability', calling for an assessment of the ecological consequences of human activities on planet Earth. In an extremely complex scenario, between climate change and the energy crisis due to ongoing conflicts, the challenge we all face today is to adopt a broader perspective to understand and safeguard the ecosystem in which we live.