Global Issues Recent years have witnessed the increasing awareness of the extensive range of environmental problems which have now formed serious international concern and agenda for the survival of mankind. The areas of threat include atmospheric pollution, global warming, ozone depletion and the dangers of nuclear and other extra-hazardous substances, not to mention threatened wildlife species.

Sustainable energy sources are energy sources which are not expected to be depleted in a timeframe relevant to the human race, and which therefore contribute to the sustainability of all species. An additional criterion for strict sustainability, useful for short- and medium-term decisions is social and political sustainability of an energy technology.

All animals have common names. These names may be different for the male, female, and young of a species. They may also be different for different groups of animals.

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