Impact of natural gas on the environment
Consumption gas natural is growing worldwide. This increase is driven by the continuous discoveries of new gas fields, which generates expectations about their exploitation in the short and medium term. However, it is important to remember that natural gas is a non-renewable resource, which means that, once used, natural sources are exhausted without the possibility of regeneration in times comparable to human cycles.
At industrial and domestic levels, natural gas has multiple applications, including its use as fuel for vehicles. In addition, it is presented as a cleaner energy alternative compared to other fossil fuels such as oil or carbon, by emitting less carbon dioxide (CO2) during combustion.
Environmental advantages of natural gas
One of the main advantages of natural gas over fossil fuel like coal is the reduction of polluting emissions. Natural gas emits between 50% and 60% less CO2 than coal when burned, making it a less harmful option for the atmosphere in terms of global warming.
Another positive aspect is that, although natural gas is a fossil fuel, it emits very few particulate matter. sulfur y mercury, compared to other fossil fuels such as coal or oil. This means that natural gas generates fewer problems related to the contamination direct atmospheric.
When considering the impact of natural gas on transportation-related pollutant emissions, liquefied natural gas (LNG) or compressed natural gas (CNG), used in vehicles, is a better alternative to traditional fuels such as gasoline. The use of CNG in automobiles reduces emissions of harmful gases such as carbon monoxide and hydrocarbon, thus contributing to improving air quality in large cities.
Negative impacts of natural gas on the environment
Despite its advantages, natural gas is not exempt from negative impacts on the the environment. Like oil extraction, exploration y extraction of natural gas can have devastating effects, particularly when the exploration technique known as fracking or hydraulic fracturing.
Fracking creates fissures in underground rock formations to increase the flow of gas to the surface. This method can not only lead to the aquifer contamination, but can also cause tremors and consumes large amounts of water, which then becomes contaminated. Therefore, although natural gas can be considered cleaner than other fossil fuels, leaks of methane and the side effects of fracking are of great concern to the environment.
A key consideration for natural gas extraction activities, especially in regions such as the Arctic or the Amazon, is the deforestation and alteration of fragile ecosystems. The construction of large infrastructure As pipelines, which are necessary to transport the gas, also entail significant environmental impacts related to the destruction of habitats and the displacement of local communities.
Human health risks
Despite efforts to keep natural gas controlled during its production and use, there are inherent risks regarding the Human health. According to studies by the Biomedical Engineering faculty at Harvard University and other academic institutions, it is estimated that fossil gas contributes significantly to premature mortality worldwide due to polluting particles.
Natural gas burns cleaner than coal or oil, but it is still a source of atmospheric pollution, with emissions of nitrogen oxides that can have adverse effects on health, such as problems respiratory y cardiovascularThese emissions are particularly problematic in urban areas where natural gas use is concentrated in homes and industries.
Alternatives to natural gas
With the depletion of natural gas reserves projected for the next decades, it is imperative to look for viable alternatives. One of these alternatives is the biogas, a renewable fuel that is generated from organic materials such as manure and agricultural waste. Unlike fossil gas, biogas is constantly being renewed and its use contributes to the reduction of net greenhouse gas emissions.
In Spain, there are already important initiatives related to biogas production, although they are still limited compared to other countries. The expansion of this technology is vital to mitigate the Environmental risks the depletion of fossil fuels and contribute to the transition towards a greener and more sustainable economy.
Natural gas may be cleaner than coal or oil, but it still contributes to climate change and has serious impacts on human health and the environment. It is important to consider renewable energy sources such as solar, wind o geothermal which, when combined, can meet energy demands without the dangers associated with fossil fuels.