I believe that the CO2 death fog is a myth. Do the math on the ppms you will get by doing that and then understand that very high levels are needed for toxicity. You may kill the living ones if you get it high enough for long enough, but i don't think it will kill the eggs.
From Wikipedia:
http://en.wikipedia.org/wiki/Carbon_dioxide
Prolonged exposure to moderate[
clarification needed] concentrations can cause acidosis and adverse effects on calcium phosphorus metabolism resulting in increased calcium deposits in soft tissue. Carbon dioxide is toxic to the heart and causes diminished contractile force.
[53]
Toxicity and its effects increase with the concentration of CO2, here given in
volume percent of CO2 in the air:
http://en.wikipedia.org/wiki/Carbon_dioxide
- 1% [10,000ppm]can cause drowsiness with prolonged exposure.[5]
- At 2% [20,000ppm]it is mildly narcotic and causes increased blood pressure and pulse rate, and causes reduced hearing.[53]
- At about 5% [50,000ppm]it causes stimulation of the respiratory center, dizziness, confusion and difficulty in breathing accompanied by headache and shortness of breath.[53] Panic attacks may also occur at this concentration.[55][56]
- At about 8% [80,000ppm] it causes headache, sweating, dim vision, tremor and loss of consciousness after exposure for between five and ten minutes.[53]
Due to the health risks associated with carbon dioxide exposure, the U.S. Occupational Safety and Health Administration says that average exposure for healthy adults during an eight-hour work day should not exceed 5,000 ppm (0.5%). The maximum safe level for infants, children, the elderly and individuals with cardio-pulmonary health issues is significantly less. For short-term (under ten minutes) exposure, the U.S. National Institute for Occupational Safety and Health (NIOSH) and American Conference of Government Industrial Hygienists (ACGIH) limit is 30,000 ppm (3%). NIOSH also states that carbon dioxide concentrations exceeding 4% are immediately dangerous to life and health
[57] although physiological experiments show that such levels can be tolerated for some time.
[58]
So my point is, if this is the effect on humans, what little effect would there be the invincible borg.
