Sources of Greenhouse Gases

The efficiency with which these gases absorb IR radiation is not equal, as shown by the greenhouse factors in Table 6.2. Some gases are orders of magnitude more efficient at absorbing IR radiation. We are fortunate that the concentration of these efficient absorbers in our atmosphere (the tropospheric abundance) is quite low. Since the seriousness of the problem is related both to the efficiency with which the gas absorbs IR and its concentration, we will focus on GOg and methane, both present in relatively high and increasing concentrations. 

Convert the tropospheric abundance values listed in Table 6.2 into ppm 

Prior to the Industrial Revolution, which began in the late 18th century in Europe, the average citizen of the world was responsible for the release of relatively small amounts of carbon dioxide gas into the atmosphere. This release 

Chlorofluorocarbons (CFCs) A term used to refer collectively to compounds containing only carbon, chlorine, fluorine. and sometimes hydrogen. CFjClj, developed initially for use as a refrigerant in air conditioning systems, is an example. 

Radiational cooling The phenomenon of enhanced loss of heat from Earth on a clear, cloudless night due to the absence of significant water vapor in the atmosphere in the form of clouds 

---

Livestock as Sources of Greenhouse Gases and Its Significance to Climate Change... 

Hydrates are also of research interest as a source of greenhouse gases resulting from the decomposition of the trapped methane as well as for their role as a submarine geohazard, as the destabilisation of gas hydrates may initiate submarine landslides, which may cause tsunamis. The formation of gas hydrates further poses problems for gas pipelines at low temperatures, such as in deep and cold waters. 

Through this EPA site you can download the 2005 U.S. Greenhouse Gas Emissions Inventory, which tracks anthropogenic sources of greenhouse gases in the United States. 

Pravda on October 26,2004 published articles headlined Russia has to ratify the Kyoto Protocol to become a WTO member, Russia needs to ratify the document to make it work, as Russia is the world s second largest source of greenhouse gases. The adherents of KP ratification in Russia have attempted to sway public opinion and could win despite the opinion of many experts. Nevertheless, discussions on this subject still continue. 

Energy source for microbes a source of nutrients for plant growth source of greenhouse gases... 

Most deposits of coal were formed during the Carboniferous and Permian periods. More recent periods of coal formation occurred during the early Jurassic and Palaeogene periods. Coal deposits occur in all the major continents, and coal is used as a fuel and in the chemical industry by-products include coke and coal tar. Combustion of coal is a major source of greenhouse gases worldwide, and efforts are underway to develop clean coal technology. 

In fact, the modem textile industry is one of the biggest sources of greenhouse gases, given the myriad processes and products that go into the making of any item of clothing. 

The manufacture of fertilisers has also come into focus as a source of greenhouse gases (GHGs) and new technologies have meant a reduction in GHGs. These types of products ate called abated fertilisers and ate helping to reduce emissions, particularly ammonia and nitrous oxide. 

---