Protecting the Earth's atmosphere has become a concern on the agenda of all mankind, regardless of how one state or another is involved in resolving or worsening of this serious problem. States are facing global warming, generating a triple dilemma. First, there is the dilemma of short-term and predictable costs to winning long-term and less predictable benefits. The second refers to some specific segments, such as oil companies and industrial workers bearing the costs, while most of the benefits are distributed in domestic and world society internaţional. The third dilemma concerns the collective goods between states, ie the benefits are shared globally and the costs to be borne by each state. The international system must face both the conflicts, whose number is increasing, and the complexity of the global management. As demands on the environment continues to grow, this problem grows and the two reasons which contribute to this pressure are: economic development and a greater number of people. Pollution as a global issue is the prerogative of our century, especially in the last thirty years when the population of the planet has greatly increased (from 5 to 7 billion) and the environment has been damaged by pollution, erosion and other phenomena due to the willingly or unwillingly actions of mankind.
Compared to 400 years ago, as a result of improved living and health standards, and also due to a high percentage of the birth rate, the world population has increased about 10 times, and for the year 2050 is expected to reach about 10.5 billion.
How human action influences the soil and the earth's atmosphere can take many forms and existed since humans began using fire for agriculture, heating and cooking food and especially during the industrial revolution that began at the end of the eighteenth century and early nineteenth century, when air pollution has started to become a major problem. Currently, one of the most serious problems caused by air pollution is global warming produced by the accumulation in the atmosphere large amounts of carbon dioxide and other gases, known as greenhouse gases. They reduce the heat dissipated from Earth but does not block the sun radiation. Because of this greenhouse effect is expected that global temperature increase of 1.4 ° C to 5.8 ° C by 2100, a process that has already begun to change climate patterns, affecting agricultural production, changing the distribution of animals and plants and increasing sea level. To combat the problems posed by pollution worldwide and reducing pollution, an important role it plays on the international stage the policies adopted by governments and international bodies, international understanding and not least nongovernmental groups formed at local, national and international.
In-Situ Cosmogenic 14C: Production and Examples of its Unique Applications in Studies of Terrestrial and Extraterrestrial Processes
