Energy production, still based on the burning of fossil fuels, is one of the main factors causing climate change. Every life activity requires energy, so the problem is accentuated by the constant increase in population. Therefore, it is necessary to analyze and reduce consumption, in spite of the energy requirement  in almost all production processes in society. This leads us to the need to implement circular energies (renewable energies) as well as to include efficient energies from the individual to the global level. A renewal of the current energy legislation is necessary to curb climate change and thus try to reduce problems such as rising sea levels, floods, droughts, extreme weather conditions or the interruption of ecosystem services on which the supply depends on food. Many other actions can be carried out in an individual way: use of public transport, sustainable mobility (bicycles, scooters), Kilometer 0 trade or energy rehabilitation of buildings. It would be very important to find specific solutions and practices that can reduce the costs associated with the use of domestic energy, domestic water or gas. Society is increasingly aware of the current situation and little by little is taking  a strong commitment to conserving the environment. Young people must lead this trend, so it is essential that education  begins at early ages to get the goals we wish. We should all care more about energy use. If a lot of people change their minds, it could mean a change in consumption, which could change economic processes.