Jeff Rigby wrote:

Oceans have already absorbed a third of the world's emissions of carbon
dioxide, one of the heat-trapping gases blamed for global warming,
leading to acidification that prevents vital sea life from forming
properly.

So we should expect burning lungs for those who breathe out carbon dioxide.
How in the world does anyone believe this bunk. Your breath has twice as
much carbon dioxide as there is in the atmosphere/many times the amount that
is dissolved in the ocean. While there is a slight tendency for the carbon
dioxide molecule to attract an oxygen atom in water thus freeing up the
hydrogen atom to make an acid it's EXTREMELY weak.

Not that weak. If you take a distilled water and left it open pH goes
down from 7 to about 5.7 - just because of the presence of dissolved
carbon dioxide.

So far changes in the carbon dioxide levels are below the level that
may have any direct meaning for our health. Blood acts as a buffer - it
contains carbonic acid in equilibrium with bicarbonate and it is in
equilibrium with the carbon dioxide level present in the lungs, much
higher than in the surrounding air. As the blood flows continuously
through the lungs it keeps their pH at almost constant level. But if
the level of carbon dioxide in your lungs increases your urge to breath
is based on the fact that increasing amount of carbon dioxide (and
carbonic acid) lowers your blood pH.

http://www.ph-meter.info/pH-scale

Note that observed differences in blood pH are about 0.1 pH unit - 0.03
pH change will already make you pant.

Borek
--
http://www.chembuddy.com
http://www.ph-meter.info