Browsing articles from "August, 2014"
Aug 1, 2014

Greenhouse Effect – Our Update

Greenhouse gases (GHGs) are essentially the chemical compounds present in the Earth’s atmosphere, which help in managing the near-surface temperature of the planet by taking in the infrared radiations from the Sun and producing them within the thermal infrared variety. Like we pointed out in the beginning, if it was not for these gases, the Earth would have been a lot cooler, and life would not have been the exact same for plants, animals, or people for that matter.

Despite all these telling observations and regardless of independent, scientific computations that greenhouse gases in the atmosphere will certainly interfere with energy flows from the Sun to our Earth and with energy losses from the Earth to Outer Space, many individuals still deny the disturbance of greenhouse gases on global and regional environments.

An There’s So Much More To Discuss

The most popular names in the greenhouse gases list are water vapor, co2, methane, nitrous oxide, and ozone. Other than these, the list likewise consists of chlorofluorocarbons (CFCs), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride, nitrogen trifluoride, and so on. As these gases are present in the atmosphere in small amounts, they are not as popular as carbon dioxide or methane.

On The Subject of greenhouse effect

It is difficult to determine the global warming potential of water vapor and ozone, and therefore they were excluded from this list. That, however, doesn’t mean they are less of a threat. These cases together have a significant share in the atmospheric composition greenhouse gases.

Even More Info About Greenhouse Effect

Water vapor, i.e., the gaseous form of water, which is produced as a result of evaporation of water and/or sublimation of ice, accounts for around 33 to 66 percent of the greenhouse gases in the atmosphere. The concentration of climatic water vapor across the globe is unequal, and for that reason, it is difficult to identify its global warming potential. Anthropogenic elements, i.e., human activities, do contribute in the development of water vapor, but the quantity of vapor produced in this case is as good as none.

Carbon dioxide features second in the greenhouse gases list, accounting for 9 to 26 percent of the total composition. While water vapor is primarily traced to the natural procedure of evaporation, carbon dioxide is released in the air as an outcome of many anthropogenic activities; combustion of nonrenewable fuel sources being the most vital of the lot. As of May 2013, the concentration of carbon dioxide in the Earth’s atmosphere has reached 400 ppm (parts per million) by volume, which is a substantial rise from 280 p.m. in pre-industrial times.

Methane accounts for anywhere in between 4 to 9 percent of the greenhouse gases, but being extremely potent, it is a larger threat to the planet than carbon dioxide. In fact, its capacity of trapping heat is 25 times that of co2. Methane is found in abundance below the Earth’s crust from where it is launched throughout the procedure of mining. Researches expose that the amount of methane in the atmosphere has actually gone up from 700 parts per billion (ppb) in 1750 to 1,818 ppb in 2011.

Constituting roughly 3 to 7 percent of the total greenhouse gases, ozone acts as a greenhouse gas in the upper troposphere, where it soaks up the infrared energy that is emitted by the Earth. As with water vapor, even the concentration of ozone is uneven, which, in turn, makes it difficult to identify its global warming potential. It’s believed that the relative requiring of ozone present in the troposphere is roughly 25 percent, even more than that of carbon dioxide.

Greenhouse effect has actually long been considered a nuisance to the environment. Some countries actually even went to the degree of banning products which lead to the discharge of damaging gases, like CFCs. The Intergovernmental Panel on Climate Change (IPCC) and other government bodies are striving for the betterment of the environment, however, these efforts will just be successful when ‘we’ understand the seriousness of various environmental problems plaguing our planet.