The study entitled Our Common Future, also known as the Brundtland Report, was published by the United Nations in October 1987. In this report, sustainable development was defined as “meeting the needs of the present without compromising the ability of future generations to meet their own needs”. In the following years, many international meetings and conferences were organized on sustainable development. In 2015, the United Nations General Assembly adopted the 2030 Agenda for Sustainable Development, which consists of 17 goals and 169 targets and includes the Sustainable Development Goals to be achieved by 2030. These goals are as follows:
    1. No poverty 
    2. Zero hunger 
    3. Good health and well-being 
    4. Quality education 
    5. Gender equality 
    6. Clean water and sanitation 
    7. Affordable and clean energy 
    8. Decent work and economic growth 
    9. Industry, innovation and infrastructure 
    10. Reduced inequalities 
    11. Sustainable cities and communities 
    12. Responsible consumption and production 
    13. Climate action 
    14. Life below water 
    15. Life on land 
    16. Peace, justice, and strong institutions 
    17. Partnerships for the goals