Fossil Fuel-Based Energy

80 percent of the world's primary energy demand is now met by fossil fuels, and the energy system is responsible for around two thirds of all CO2 emissions in the world. Given that emissions of methane and other SLCPs are thought to be greatly understated, it is probable that an even bigger proportion of emissions are caused by the production and consumption of energy. Additionally, a large portion of biomass fuels are already used on a modest scale for cooking and heating around the world. Particularly with regard to indoor air quality in many less developed nations, they are incredibly inefficient and harmful. The amount of carbon that can be emitted if the increase in the average world temperature is kept to 2°C will be considerably exceeded by emissions if current trends continue, or if the existing proportion of fossil fuels is maintained and energy demand almost doubles by 2050. The effects of such emissions on the planet's climate would be catastrophic. There are several options for the energy sector to reduce emissions, most notably through cutting energy consumption and the net carbon intensity of the industry by switching fuels and lowering CO2 emissions.