Green

Is our planet in danger?!

“This decade is warmer than the ninety’s, and that decade was warmer than the eighty’s, and so on. Although 2009 is only the fifth warmest year on the basis of the world average, such hotness than this year has not been experienced from time beyond all memory in certain regions of Africa and Asia”- told Michel Jarraud, Secretary-General of WMO.           Both the data of the organisation of the UN and the American space administration (NASA) broken down to years show that the process of the global warming is almost unstoppable to progress.

In December 2009, almost two thousand delegates from 192 UN member states arrived in the Danish capital in order to work out the new treaty in the place of the international legal document expiring in 2012.

On the opening day, 56 papers in 45 countries warned the world leaders in a joint editorial to fight against the climate change and also timed to the start of the conference 226 environmental organisations collected ten millions of signatures for an on-line petition requesting that the delegates show brave espousal and develop a “rightful, comprehensive and binding” treaty.

The source of the damage

In addition to the change of the radiation conditions, the amount of greenhouse gases has grown in the atmosphere. They think this is the most important one from the human reasons of global warming. The point of the greenhouse effect is that the greenhouse gases do not absorb the sunbeams entering the atmosphere and coming in the range of visible light, however, they absorb a part of the infrared radiation of greater wavelength reflected from the earth surface. This heat energy remains in the lower air-strata.  By the growing concentration of greenhouse gases, less and less heat will go in the outer space, and the lower atmosphere and the earth surface will be warmer and warmer. The most important greenhouse gases are carbon dioxide CO₂), methane (CH₄),  dinitrogen oxide (N₂O), sulphur hexafluoride (SF₆), halocarbons (CFCs) and the lower atmosphere (tropospheric) ozone.

Although during the natural cycles thirty times as much carbon dioxide is produced than in human activities, the carbon dioxide emission caused by humans reaches 20 milliard cubic meters. Its majority comes primarily from the burning of fossil fuels (natural oil, natural gas, hard coal and brown coal, lignite).

Carbon dioxide means 9–26 % of the greenhouse gases coming in the atmosphere naturally; however, it amounts to 80% for the total greenhouse emission caused by human activity. According to the 2001 report of IPCC (Intergovernmental Panel on Climate Change), the distribution of the world carbon dioxide emission in the main consumer sectors is as follows: industry: 43%, residential buildings: 21%, other buildings: 10%, transport: 22%, agriculture: 4%.

higher air strata- the heat convection is much more intensive just in the wavelength ranges where the operation of the operation of the carbon dioxide is more efficie

Application of heat pumps

The local emission of geothermic heat pumps is null! The CO₂ arising when the electric power necessary for their operation is produced in the power plants will continuously decrease by the advancement of the technology and spreading of water and wind power plants. As a result, the application of heat pumps can reduce the value of power plant’s CO₂ emission by some 45-60% if we do not take into account that majority of heat pumps utilize off-peak electric power.