There is general agreement by scientists that the global climate will continue to change, that the intensity of weather effects will continue to increase, and that some species of animals will become extinct.
There is also general agreement, or consensus, that humans need to take steps to reduce emissions of waste products and greenhouse gases into the atmosphere, make adaptations to the changes that are occurring, and figure out ways of reversing the trends of pollution and global warming.
There are two main types of air pollution: primary and secondary.
Primary pollutants enter the air directly, like smoke from factories and car exhaust.
These materials can come from medical sources, nuclear power plants, or laboratories which handle radioactive materials.
Air, soil, and water can be polluted by radioactivity.
Artificial lighting has health effects on humans and animals.
In people, it can cause high blood pressure and affect sleeping and waking rhythms and immunity.
Genuine peace must be the product of many nations, the sum of many acts.
It must be dynamic, not static, changing to meet the challenge of each new generation (Kennedy 1963)....