NanoNano
Active Member
0.4
Projected drop in seawater pH, from 8.2 to 7.8, by the end of the century if present trends hold, according to a 2009 report from the national Oceanic and Atmospheric Administration. This would represent a 150 percent increase in ocean acidity since the beginning of the Industrial Revolution. The change could threaten shell-building species, corals, and fish larvae.
35
Typical salt content of ocean water, in parts per thousand (ppt). That includes chlorine, the most abundant dissolved element in seawater, at concentrations of about 19 ppt, followed by sodium (11ppt), sulfate (2.7 ppt), magnesium (1.3 ppt), calcium (0.4 ppt), and potassium (0.4 ppt).
1 million
Approximate number of bacterial cells in a typical cubic centimeter of ocean water. The total number of microorganisms in the ocean may be as high as 10(to the 30th). They account for at least half of all oceanic biomass and produce half of the oxygen in our atmosphere. Collectively, they weigh more than 240 billion African elephants.
Projected drop in seawater pH, from 8.2 to 7.8, by the end of the century if present trends hold, according to a 2009 report from the national Oceanic and Atmospheric Administration. This would represent a 150 percent increase in ocean acidity since the beginning of the Industrial Revolution. The change could threaten shell-building species, corals, and fish larvae.
35
Typical salt content of ocean water, in parts per thousand (ppt). That includes chlorine, the most abundant dissolved element in seawater, at concentrations of about 19 ppt, followed by sodium (11ppt), sulfate (2.7 ppt), magnesium (1.3 ppt), calcium (0.4 ppt), and potassium (0.4 ppt).
1 million
Approximate number of bacterial cells in a typical cubic centimeter of ocean water. The total number of microorganisms in the ocean may be as high as 10(to the 30th). They account for at least half of all oceanic biomass and produce half of the oxygen in our atmosphere. Collectively, they weigh more than 240 billion African elephants.
