Fundamentals of geology I. (lithosphere) 1 1. The formation of the Earth 1
Fig. 9.4. Effects of acid rain to the plants (after Moser 1997)
Download 9 Mb.
|
Fig. 9.4. Effects of acid rain to the plants (after Moser 1997) 9.3. 9.3. Greenhouse Effect The "Greenhouse Effect" is a term that refers to a physical property of the Earth's atmosphere. If the Earth had no atmosphere, its average surface temperature would be very low of about -18°C rather than the comfortable 15°C found today. The difference in temperature is due to a suite of gases called greenhouse gases which affect the overall energy balance of the Earth's system by absorbing infra-red radiation. In its existing state, the Earth-atmosphere system balances absorption of solar radiation by emission of infrared radiation to space (Fig. 9.5.). Greenhouse gases comprise less than 1% of the atmosphere. Their levels are determined by a balance between "sources" and "sinks". Sources and sinks are processes that generate and destroy greenhouse gases respectively. Human affect greenhouse gas levels by introducing new sources or by interfering with natural sinks. 
Directory: tartalom -> tamop412A tamop412A -> Agricultural Economics II. Popp, József Agricultural Economics II tamop412A -> Ethology practical Vilmos Altbäcker Márta Gácsi András Kosztolányi Ákos Pogány Gabriella Lakatos tamop412A -> Operating Systems Lecture Notes Attila Dr. Adamkó Operating Systems Lecture Notes tamop412A -> Agroinformatics Herdon, Miklós Agroinformatics tamop412A -> Paternoster of Programmers Reloaded tamop412A -> Lőrincz, András Mészáros, Tamás Pataki, Béla Embedded Intelligent Systems tamop412A -> This course is realized as a part of the TÁmop 1 A/1-11/1-2011-0038 project tamop412A -> Computational biochemistry ferenc Bogár György Ferency Download 9 Mb. Share with your friends:
|