The infectious diseases are considered as emerging when their occurrences have increased in the past few years and could increase in the coming time like SARS, H1N1, or HIV/Aids.
On the other hand, the re-emerging infectious disorders are those, which were once considered as the major health issues globally or in a specific nation, and then got diminished drastically, however, are again turning into the health issues for a substantial ratio of the population like tuberculosis and malaria.
Answer: It is lethal without an appropriate explanation. The lack of oxygen and high pressures are a huge risk, also the temperature and radiation.
If you can connect air pollution leads to global warming and thus climate change.
So in order to decrease pollution levels
1. Lessen the usage of vehicles (motorised)
2. Industrial waste should be treated properly before releasing into the atmosphere
