Today all of humanity is facing the challenge of the century: the total disruption of the climate! The disturbances this causes - and we are already witnessing - are enormous, both for the development of human society and for the ecosystems of our planet. Environmental issues are pressing these days. Young people like Greta Thunberg, who with their commitment and energy are trying to bring about change, should be role models for all of us, young and old. It is our planet and we are responsible for it. Through our actions and the choices we make, each of us can try to leave a smaller carbon footprint, thus, assist in tackling climate change.