Abstract Background Climate change has made many headlines in the last few years. Because it threatens clean air, safe drinking water, nutritious food supply, and safe shelter, it can have a negative impact on health and undermine any progress on development. The price of inaction is high and the Sustainable Development Goals are a global effort to avoid it. However, Public Health must become a more active player to create greener services to serve a healthier world. Objective This presentation aims to provide a historical overview on the evolution of climate change, what we actually know about it, what is its impact on health and the need for green health services. Results Human activity since the mid-20th century has largely contributed to rapid climate change, including a rise in average surface temperature (0,9 degrees Celsius), most of which occurred in the past 35 years, and subsequent rise on other extreme events, such as intense rainfalls. Estimations make it that, by 2030, climate change will increase not only the number of deaths by malnutrition, malaria, diarrhoea and heat stress, but also the direct damage costs to health to USD 2-4 billion per year. This not only adds vulnerability to already fragile countries, but also compromises the Sustainable Development Goals. Along that, the healthcare sector is playing a role on generating millions of tons of waste, some of which is toxic, contributing to loss of global habitat and biodiversity and the impairment of the health of the world's ecosystem. Conclusions There is enough evidence-based data to support que need for relevant policies or innovative programmes that, besides implementing and advocating for better public health and health systems in each country, can also contribute to the Sustainable Development Goals, namely goals number 7, 8, 11, 12 and 13, and a healthy planet to go along with healthy people.