When global temperatures started increasing slowly and natural snow began melting slowly in the 1800s, the climate scientists were startled. This was a rather new happening that couldn’t yet be explained by the then existing scientific knowledge. Intense research and analysis of these occurrences were richly investigated and there was birthed the concept of global warming. It was found that the environment was actually responding to what man was doing and offering it. This, to a major extent, was the gases being produced from combustion of different types of fuels for industrial and household purposes. Burning of coal, firewood and charcoal was found to be the major contributors to causing increased temperatures of the environment thus causing global warming.
Today, we use other sources of energy that are considered rather clean to this respect, running our industries, locomotives and household needs. Natural gas is what you most probably cook with, use in your barbeque grill, in your central heating system for your house or office. Mainly made of the gas known as methane, it is rather energy efficient since it has lower energy requirements to serve its purpose. It is also used as a raw material in the industrial production of paint, medicines, plastics and even fertilizers. When combusted to produce energy, it normally produces very low carbon dioxide amounts, compared to coal. Carbon dioxide is considered a greenhouse gas since it contributes to global warming, and that is why its production needs to be minimized at all costs. Currently, houses are being fitted with natural gas pipes to eliminate the need for one looking for alternative sources of fuel. In addition, natural gas is being used in the generation of electricity in commercial industries. Here, it is burnt to produce steam which in turn turns turbines, thus generating electricity.
In some other places, liquefied petroleum gas is being used in the place of natural gas. Like natural gas, it emits very low amounts of carbon dioxide when combusted, which makes it ideal as well. Its main gas composition is propane and butane which gives it a higher heating value and energy content compared with natural gas. Liquefied petroleum gas is produced commercially during natural gas production or crude oil purification as a byproduct. However, for household purposes, ethyl mercaptan is added to enable detection of gas leaks within ones house. One advantage of LPG is that it can be compressed to reduce its volume and put into containers for distribution. On the down side, LPG usually needs more oxygen for combustion, hence the pressurization. It comes is cylinders that are air tight, given that it is highly flammable.
Unlike coal and firewood, there are no harmful greenhouse gases emitted such as nitrogen oxide or sulfur dioxide. The little bits of carbon dioxide produced are non-toxic to human beings if inhaled. However, these two fuels are non-renewable, unlike solar energy, since they are natural fossil sources. A common observation is that natural gas is cheaper than LPG, though both are user friendly. This overhaul in the sources of energy being used is a great milestone to reducing global warming effects and making the environment as unpolluted as possible.