The DNA repair ability of a cell is vital to the integrity of its genome and thus to the normal functionality of that organism. Many genes that were initially shown to influence life span have turned out to be involved in DNA damage repair and protection.
Examples for negative production externalities include: 1  Air pollution from burning fossil fuels. 2  This activity causes damages to crops, (historic) buildings and public health. 3  Anthropogenic climate change as a consequence of greenhouse gas emissions from burning oil, gas, and coal.
According to the EPA, scientific evidence indicates that indoor air can be more seriously polluted than the outdoor air in even the largest and most industrialized cities. Other studies indicate that people spend approximately 90 percent of their time indoors. The math isnât so greatâfor many people health risks may be greater due to indoor air pollution rather than outdoor pollution. Ill effects may arise after just a single exposure as well as repeated exposure, and can run the range from irritation of the eyes, nose, and throat, to headaches, dizziness, and fatigue.