That is very difficult to explain if the problem is accelerating and even suggests that the causation is either much smaller than alarmists suggest (small enough that mother natures natural variance swallowed it whole) or the link to causation is less strong than you're suggesting. (skepticalscience.com)
The natural variance in people's anabolic hormone levels just doesn't influence muscle building and fat loss nearly as much as pill and PDF pushers want you to believe. (legionathletics.com)
Those factors include stronger winds (which drag warmer water to the surface), human - caused global warming, natural variance and possibly the hole in our ozone layer. (salon.com)