Not exact matches
As people release
more and
more carbon dioxide into the air, the
ocean takes up the gas and edges closer toward
acidity.
Yeh said the team's approach could also be used to study how four or
more pharmaceuticals interact, and a similar mathematical framework could be used to better understand climate change (for example, to understand how temperature, rainfall, humidity and
acidity of the
oceans interact) and other scientific questions that have three or
more key factors.
The framework would be useful for solving other questions in the sciences and social sciences in which researchers analyze how three or
more components might interact — for example, how climate is affected by the interplay among temperature, rainfall, humidity and
ocean acidity.
An analysis of CO2 preserved in ice cores shows that for
more than 600,000 years the
ocean had a pH of approximately 8.2 (pH is the
acidity of a solution measured on a 14 - point scale, with a pH below 7 being acidic and above 7, basic).
Acidity may impair movement Previous research has shown that when carbon dioxide is absorbed by the
ocean and it becomes
more acidic, concentrations of calcium carbonate drop, and that hurts shellfish and corals, which use calcium carbonate to build shells and skeletons.
When carbon dioxide, CO2, from the atmosphere is absorbed by the
ocean, it forms carbonic acid (the same thing that makes soda fizz), making the
ocean more acidic and decreasing the
ocean's pH. This increase in
acidity makes it
more difficult for many marine organisms to grow their shells and skeletons, and threatens coral reefs the world over.
Too much debate treats temperature (and especially the most recent global average) as the sole indicator, whereas many other factors are at play including sea levels,
ocean acidity, ice sheets, ecosystem trends, and many
more.
And
ocean acidity levels vary even
more than temperature in both location and time.
A new prize aims to change that by offering a $ 1 - million reward to inventors who can devise a cheaper and
more accurate test of
ocean acidity, which is measured in pH, a gauge of the concentration of ions in a solution.
Climate change models predict that carbon dioxide levels and
ocean acidity will
more than double before the end of the century.
Since the Industrial Revolution,
ocean acidity has increased 30 %, and projections are saying it could be 150 %
more acidic by the end of the century.
Whereas PPM Data is immediate and accurately measurable and comparable to the «real world» be it back to human emissions, be it sources, be it sinks, be it
ocean acidity, be it climate forcing long term and
more than anything the dynamics of PPM is easily explained and communicated as a Definitive Yardstick or success or failure in meeting Goals (imho).
We know the opposite to be true, that CO2 concentrations in the
ocean are increasing and causing lower pH (higher
acidity), which may be even
more damaging to life than increasing temperatures.
For example, using chemicals to make the planet
more reflective might cool things a bit, but it would do nothing to reduce other greenhouse - gas impacts, like rising
acidity in the
oceans as they absorb
more carbon dioxide.
However, with me at least, a bit part of the deal is the increased
acidity reducing fish harvests, water shortages, droughts severely reducing crops (sure —
more rain, but
more over the
ocean, less on land — and with greater evaporation before the water trickles to a dry stream bed), increased heat reducing rice production and other heat sensative crops, the heat waves, etc..
Today the surface
ocean is almost 30 %
more acidic than it was in pre-industrial times, and over the next few decades, the level of
acidity of the surface
ocean will continue to rise without deliberate action to reduce carbon dioxide emissions.
Today the surface
ocean is almost 30 %
more acidic than it was in pre-industrial times, and over the next few decades, the level of
acidity of the surface
ocean will continue to rise without deliberate action to reduce carbon dioxide emissions and stabilize»
One can logically wonder at just how much Dr. Dorney knows if he begins his testimony with «Today the surface
ocean is almost 30 %
more acidic than it was in pre-industrial times, and over the next few decades, the level of
acidity of the surface
ocean will continue to rise...» when the worries about acidic
oceans is pointless since where is the base line?
``... the
oceans are 30 percent
more acidic today than they were during pre-industrial times and, if we continue burning fossil fuels as we are now, we will double the
ocean's
acidity by the end of the century.»
It means hotter global temperatures,
more extreme weather events like heatwaves and floods, melting ice, rising sea levels and increased
acidity of the
oceans.
These tipping points could be ice sheets on Greenland and Antarctica melting permanently, global food shortages and widespread crop failures with
more extreme weather, rising
ocean temperatures and
acidity reaching triggering a crash in global coral reef ecosystems, and warming
oceans push the release of methane from the sea floor, which could lead to runaway climate change, etc..
Unless emissions are reined in,
ocean acidity could increase by 200 percent by the end of the century and even
more in the next century, said James Barry, a senior scientist at the Monterey Bay Aquarium Research Institute in California and one of the study's authors.
And what is actually even
more alarming is the CO2 discharged into our
oceans which changes the
acidity (ph balance) of the water, and this is already having disastrous results in the seafood industry because oysters can not form their shells naturally due to the acidic levels from the excessive CO2.
One of the main reasons that the surface layer is increasing in
acidity (or
more accurately, becoming less alkaline) is because the current increase in the rate of human - generated CO2 is overwhelming the
ocean's ability to absorb it.
Anthropogenic CO2 emissions cause the
oceans to absorb
more CO2, which increases the
acidity of the water.
However the soaring levels of man - made CO2 in the atmosphere are proving devastating to the
oceans themselves: since the beginning of the industrial era they have become 30 percent
more acidic, reaching an
acidity peak not seen in at least 55 million years, scientists say.
The
ocean's absorption of anthropogenic CO2 has already resulted in
more than a 30 % increase in the
acidity of
ocean surface waters, at a rate likely faster than anything experienced in the past 300 million years, and
ocean acidity could increase by 150 % to 200 % by the end of the century if CO2 emissions continue unabated (Orr et al. 2005; Feely et al. 2009; Hönisch et al. 2012)
How do you account for increased
ocean acidity (
more CO2 retained) during cooling periods and decreasing
acidity (less CO2 retained) during warming periods as shown in the above chart?
I suspect that the higher concentrations of CO2 in the
oceans (higher
acidity) is
more a a function of water temperature than atmospheric CO2 concentration.
· Also,
ocean acidity should rise, making it
more difficult for corals and other animals to make shells; hurricanes should become stronger; heat waves and heavy rain should be
more frequent; there will be less ice and snow; and there should be
more rain away from the equator.
Now scientists are setting up to learn
more about how our
oceans are reacting to the 30 % increase in pH (the measure of
acidity) that has already occurred, and what might happen if the trends continue.
Ocean acidity is rising as sea water absorbs
more carbon dioxide released into the atmosphere from power plants and automobiles.
A 2009 United Nations Environment Programme report into
ocean acidification projects that
acidity of the seas will
more than double in the next 40 years, a rate one hundred times faster than anything seen during the past 20 million years.
«If the
oceans are warming, or the
acidity is changing, that will benefit some species
more than others,» he says.