It is widely known that the atmospheric concentration of radiatively active “green-house” gases, principally carbon dioxide (CO2), nitrous oxide (N2O), methane (CH4), and chlorofluorocarbons (CFCs), has increased steadily over the past century. There is considerable consensus among the international scientific community that we are facing global warming due to this growing concentration of greenhouse gases in the atmosphere. This effect is known colloquially as “the greenhouse effect”. It has been estimated that the average global temperature has increased 0.5 – 0.7 °C since the turn of the century, whereas current estimates from models indicate that a doubling of atmospheric CO2 and other gases may increase the annual temperature by 3.0± 1.5 °C during the next 50–100 years. Such predictions are, of course, far from being certain and can, at best, be only considered as possible scenarios. Although the properties of the radiative greenhouse gases are rather well-understood, and despite the improvements in our understanding of atmospheric dynamics and large-scale climatic processes, the climatic change due to greenhouse gases is still not entirely understood, and a clear consensus has yet to emerge as to the overall direction that global climate is evolving toward.
Weitere Kapitel dieses Buchs durch Wischen aufrufen
- Regional Climate Change Impacts on Hydrology and Water Resources: A Case Study from Greece
Maria A. Mimikou
Yannis S. Kouvopoulos
Panagiota S. Hadjissavva
- Springer Berlin Heidelberg
- Chapter 10