The last part of Dr. Everett’s testimony presents his conclusions. Much of it is simply reiteration ofclaims he has already
made, but he also takes the opportunity to thicken the smoke screen just a little bit more. Some parts are mundane: ‘The most important approach [...] is to examine what happened during past times.’ I completely agree! See Fig. 1. But other parts are more problematic. Here’s a quick flyby:
He claims ‘There is no reliable observational evidence of negative trends that can be traced definitively to lowered pH of the water’, and dismissing experimental results. However, studies meeting his criteria exist, and they demonstrate negative consequences.
He demands that experiments be run over sufficient generations to allow for adaptation, but he doesn’t say how many generations are sufficient. This leaves any study demonstrating negative effects open to rejection by moving the goalposts for sufficient experimental length. Ironically, a paper which Dr. Everett had earlier claimed cast doubt upon acidification studies mentions the short time scales of current experiments, but concludes that it could well be masking the more severe effects of acidification:
‘Although suppression of metabolism under short-term experimental conditions is a “sublethal” reversible process, reductions in growth and reproductive output will effectively diminish the survival of the species on longer time-scales.’ (Fabry et al. 2008)
Conclusions he doesn’t like can be further dismissed: ‘If there were [an observation of deletrious effects of acidification], it would be suspect because there is insignificant change relative to past climates of the Earth.’ We have seen this statement to be simply incorrect. He fails to give further support for this position, stating that ‘Scientific studies, and papers reviewing science studies, have similar messages’, but not giving us any examples.