More Sea Acidification Studies Debunk Fantasy Fears: Sea Urchins Even Thrive With 5,000 PPM CO2 Levels
Read here. The green organizations that rely on donations from those individuals frightened by "ocean acidification" may have to get a new gig or find new gullible patsies. Study after study keeps being produced showing the impact of CO2 on marine life to range from minimal to nada.
The green-fanatic groups that conduct this type of money-raising via orchestrated scaremongering should lose their tax-exempt status or at least be investigated by the FTC for outright fraud.
"In studies of sea urchins, for example, statistically significant reductions in egg fertilization rates did not occur in Echinometra mathaei until the atmospheric CO2 concentration was raised a full 5,000 ppm above that of the ambient air; and in Hemicentrotus pulcherrimus, even a 10,000 ppm increase in the air's CO2 concentration was insufficient to elicit a statistically significant decline in egg fertilization rate.....In doing so, they say that over the ranges of seawater pH and temperature they studied, there was "no effect of pH" and "no interaction between temperature and pH" on sea urchin egg fertilization.....the five Australian researchers found that "across all treatments there was a highly significant effect of sperm density, but no significant effect of temperature or interaction between factors." In fact, they state that "low pH did not reduce the percentage of fertilization even at the lowest sperm densities used, and increased temperature did not enhance fertilization at any sperm density." In addition, they remark that "a number of ecotoxicology and climate change studies, where pH was manipulated with CO2 gas, show that sea urchin fertilization is robust to a broad pH range with impairment only at extreme levels well below projections for ocean acidification by 2100."