@Natalija
I know that you are into Environmental Engineering. In the latest period I digged a lot into achieving zero emissions thematics to tackle pollution and global warming. It springed to my mind that societies should rely more on production of electricity involving less fossil fuels such as coal and gas, and instead more through solar energy.
Also thinking about new more friendly battery technologies improvements, such as solid state batteries.
Even better, the best I discovered regards Green Hydrogen production, very different from the Gray one. Electrolysers with capacities of dozens of thousands of megawatts could afford producing dozens of millions of tons of eco-friendly hydrogen each year that could serve as the energy fuel of the future in that when burned, it merely generates water as a byproduct, meaning no harmful greenhouse gas emissions are produced unlike with with fossil fuels. Unlike biofuels green hydrogen doesn't even require large areas to be manufactured and we would not even have to deal with water pollution. Unlike renewables like solar and wind which are limited by the constraints of electrical grids, green hydrogen can also be transported and could make for a substitute of petroleum.
The thing is producing vast amounts of Green Hydrogen will require investments on better infrastructures and also coping with a superior electricity demand, but it's makable. Electricity is in fact zero-emission when consumed, and the world needs to rely on it a lot more and solar energy could play a fundamental role in its production.