An increase of CO2 in seawater increases growth of photosynthetic algae isnt that a good thing?
The growth and photosynthesis of certain marine phytoplankton and plant species may increase with higher CO2 levels, but this is by no means a general rule. For other species, higher CO2 and rising acidity will have either negative or neutral effects on their physiology. Therefore some marine phytoplankton and plants will be “winners,” while others will be “losers.” This means that instead of benefiting all impartially, future acidification will instead probably cause major shifts in the species composition of ocean phytoplankton communities. Some of the experiments that have been done so far suggest that the likely new dominant phytoplankton species in the future acidified ocean may be less able to support the productive food chains that we presently rely on to support healthy ocean ecosystems and fisheries resources.
