Автор: Amigo
Дата: 03-09-10 10:35
И една интересна информация във връзка с тази фото тема ![[cool]](https://photo-forum.net/forum/smileys/cool.gif)
Based on 1993 data, the United States had a footprint of 10.3 hectares per capita, compared to7.7 hectares per capita in Canada, 5.9 hectares per capita in Sweden, 5.2 hectares in the United Kingdom, and 4.3 hectares in Japan. On the other hand, developing countries had much smaller ecological footprints: 2.5 hectares per capita in Costa Rica; 0.8 hectares in India; and 0.5 hectares in Bangladesh, for example.
Globally, however, there are only 2.0 hectares of biologically productive land and sea space available per person. If around 12 percent (0.25 hectares) is reserved for biodiversity protection, as recommended by the World Commission on Environment and Development, this leaves 1.75 hectares per person. Yet humans already use 2.3 hectares per person, on average, or 35 percent more than is available.
Thus, the "ecological footprint" on the earth has become so large that were everyone to achieve the U.S. standard of living, to which many aspire, using current technologies, human beings would need five more planets to sustain them today! If world population increases to 10 billion by the year 2030 or so—only one generation—as is currently predicted, the amount of biologically productive space will fall to 1 hectare per capita, and less than that if humans continue to degrade land and sea space. Reaching the current U.S. standard of living for everyone will then require an additional nine planets.
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