[delbel]

then you would be happy to know that there is zero scientific evidence supporting ocean acidfication. the science is based on data from measurements of PH values before chemistry established the existence of an acid or base, let alone the ocean is actually not acidic but has a PH between 7.5 and 8.4, so if anything the ocean is becoming more neutral if there were in fact any basis to the argument. I'm glad I was able to lighten up your day now that you no longer have to worry about this phoney science.

[Goronmon]

...let alone the ocean is actually not acidic but has a PH between 7.5 and 8.4, so if anything the ocean is becoming more neutral if there were in fact any basis to the argument.

This is a bit like arguing that global warming isn't real because places like Antarctica are really cold and any warming would just make the temperature less cold and not warm.

[southern_cross]

Given that most of the "really cold" places are well below freezing, then any warming from "well below freezing" to "a little bit less well below freezing" means that most of the snow and ice (maybe pretty much all of it) still stays frozen. And what does melt may just quickly refreeze pretty much in place when temps drop again, as they usually do. So there's that.

Also, in the oceans salt water has to get to at least a couple of degrees below zero C before it actually freezes, at which point it turns into freshwater ice as it expels its salt. But then that freshwater ice has to warm back up to at least zero C before it melts again, leading to a small but real "anti-melting" bias. So there's that.

Also, floating ice actually increases in density (decreases in volume) as it melts and turns to water. I forget the exact numbers, but it has to warm by several degrees above freezing before it expands to the point where it actually takes up more volume that the frozen/not-quite-frozen variety. This leads to small but real "anti-expansion" bias. So there's that.

Fun stuff, huh?

[24gttghh]

I really wish I could downvote you for spreading FUD.

https://www.pmel.noaa.gov/co2/file/Hawaii+Carbon+Dioxide+Tim...

[phyzome]

Can't even tell if satire.

[phreeza]

I just did some back of the envelope math and I believe dissolving all of the atmospheric co2 into the oceans would lead to a concentration of about 2g/m^3. Not sure what the effect of that on pH would be, but sure sounds like it wouldn't be a lot.

[philipkglass]

It would be a much smaller shift if the CO2 were uniformly mixed through the whole depth of the ocean. Atmospheric CO2 concentrations are rising too rapidly for that. It takes thousands of years for the deep ocean to uniformly mix with near-surface water. The acidification effects over the "short" (decades-centuries) time scale are concentrated in the upper few hundred meters of ocean. Unfortunately, those upper few hundred meters are also where the vast majority of oceanic biological productivity are located. The acidification is worst where it's most biologically worrisome.

[delbel]

I did a similar calculation to figure out how much energy it would take to acidify the ocean just a little bit, and it was absolutely ridiculous magnitude of a number it wouldn't be possible even if we tried.

[phyzome]

It just goes to show how anyone can use math + the wrong assumptions to come to the conclusions they already had.

Garbage in, garbage out.