Security is a central human concern that includes numerous sub-listings. We often think of economic security, national security, energy security, nuclear security, cyber security, democratic and civil rights security, personal security and health care security as some examples. However, what is becoming very clear is that we should all be concerned with global security of our common, shared biosphere. Global security encompasses all of the above, but even more importantly, it depends on our environmental/ecological security. It also requires the establishment of universal human rights and civil liberties. The achievement of global security will require a complex, interconnected network of humans and their activities in a rapidly changing world. The focus must be on global climate change and human population growth, which are rapidly emerging as the two most important threats. The threat of nuclear weapons is still with us, but its relative importance may decline as global climate change and human population growth continue to degrade our biosphere. We must also focus on the many types of pollution that contribute to ecosystem instability and species extinction. Wars contribute immensely to societal instability and environmental degradation. Wars represent a form of carelessness which we no longer can afford. Nuclear weapons should be disassembled and wars halted. Military disciplines must be regulated by an international force, and expenditure of large sums of money for military must be prevented. Such uses of our resources are archaic and obsolete. We have more important problems to face and conquer. To complicate the situation, we also need to consider existing and emerging infectious diseases. There is a paucity of global infrastructure that is required to combat them. No one will feel secure when global epidemics hit. Natural selection of humans via infectious diseases will be cruel with immense suffering and death. The situation is grave, but there are actions that can be taken that will ameliorate our plight. We need responsible governmental officials who respect and obey international law. They must recognize that the needs of the world community must supercede national interests. Those who refuse must be expelled from office. Impeachment followed by severe punishment must become a standard consequence of dishonesty, corruption and activities based on selfinterest rather than the public interest. If billions of dollars had not been spent on military, just think what we could have accomplished. Universal human rights, birth control, healthcare and education could have been guaranteed for the same cost. Only if dealt with Water Air Soil Pollut (2010) 205 (Suppl 1):S45–S46 DOI 10.1007/s11270-007-9522-x
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