Without a doubt, human activity contributes to the present warming trend in the air, seas, and soil. Since 1750, the concentration of greenhouse gases has been steadily rising, mostly because of the burning of fossil fuels, with carbon dioxide (CO2) reaching recent annual average concentrations of 410 ppm. Due to this, governments all over the globe have started on a path to reduce damaging emissions brought on by using fossil fuels ever since the Kyoto Protocol in 1997. A few years later, with the Paris Agreement, they established the targets of maintaining the temperature rise, so far, below 2°C compared to preindustrial levels, increasing the adoption of renewable energy sources, and improving the energy efficiency of processes and technology.