Ocean acidification | Biodiversity and human impacts | High school biology | Khan Academy

Ocean acidification, a result of increased atmospheric carbon dioxide, is making our oceans more acidic, disrupting the formation of calcium carbonate in sea life and disturbing their homeostasis. This phenomenon is linked to emissions from human activities, such as the combustion of fossil fuels, driving vehicles, and deforestation.

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[sythatsokmontrey]

can you make a video about physic, on thermal expansion?

[nxgrs]

The pH scale is log so every whole number is a power/factor of ten.

By definition pH is the negative exponent of the hydrogen ion concentration.

For instance, pH 9 is 10^-9 or 1 part per billion,

pH 8 is 10^-8 or 10 parts per billion,

To go from pH 9 to pH 8 is factor of 10 or 1, 000%!!!! Makes 26% look trivial.

Ocean “acidification” of pH 8.2 to pH 8.1 is a decrease in alkalinity equal to 1 ppb of H ions.

I’m fairly certain the ocean flora and fauna don’t even notice.

[Killngo]

I have just found out this channel, thank you for sharing your knowledge with us, I have subscribed to the channel and would I
love to learn more! Thank you!

[ZennExile]

Changes in land use and land management (such as industrial agriculture practices, which have stripped a great deal of the arable land in this country of its nutrients) have accounted for around one third of the greenhouse gases that are currently in the atmosphere. Returning to practices that create fertile, nutrient-rich soil not only benefits the food system, it also pulls a percentage of that carbon into a solid form. (at least according to UC Berkley Scientists)

Please stop framing your politically corrected version of the Carbon Crisis to exclude the impact that the industrialization of farming practices has had DIRECTLY on the soil and as such the carbon cycle. If the Ocean is 30% more Acid and Industrial Agriculture has resulted in releasing as much as 30% of that carbon from the soil, then PUTTING IT BACK IN THE SOIL USING CHEAP AND SUSTAINABLE FARMING PRACTICES WILL SOLVE THE CARBON CRISIS FOR PENNIES AND IN JUST DECADES... (sorry my pinky had a mild seizure)

Do a simple Google search for soil carbon storage, or agricultural desertification. Hundreds of thousands of credible articles are waiting to correct your misconceptions about the carbon cycle. This information has been available for more than a decade. So I guess the question... is Khan Academy's goal to serve free indoctrination, or does "world-class" mean something else where you are all from? The same old politically corrected education hinders the possible success of anyone depending on Khan Academy for a globally competitive education. Please be better.

If we don't give the kids every tool for success and instead attempt to steer them toward predefined goals, we trap them in a loop of perpetual failure. Leaving out the soil when we discuss climate change when its relentless destruction results in almost 30% of the greenhouse gases currently warming the planet... That is a horrifyingly Orwellian example of politically correct framing. Is it not? Especially when ending these practices would cost so little, save so many lives, and would result in a massive reduction in global atmospheric carbon in mere decades.

Take some time to do the research. And please consider revising this and every other video in your catalogue dealing with the carbon cycle, industrial agriculture, and/or climate change specifically. A truly "world-class" education isn't one that excludes 30% of any given problem to support a politically driven narrative. These are mutually exclusive outcomes. As educators you have a higher responsibility and if you cannot meet these expectations maybe education isn't the field your organization should be in.

[piellamp]

europe is banning the sale of combustion cars by 2035 and will focus on the sale of electric cars. in a lot of cities cars with high pollution are banned already!
it's a good thing for the environment however it's def not good for your wallet since electric cars are still really expensive about double the price of a normal combustion engine

[mayukhpurkayastha]

Sir i m invent tree sensorable Ai algorithm or power acceptor large machine. This power acceptor help update new type quantum computer India

[workgather]

I am not sure I believe all of this presentation... how would you be able to find data on the carbon before there was anyone interested in recording it? :-) -- The more recent concepts might be believed.

I remember in the 60's how "acid rain" was the big issue... and you can see it's effects still. I noticed all the trees in the place I was living in the 80's had damage... not just a tree here or there. POLLUTION was the cause back then. Now we like to say it is Carbon Dioxide. There is a problem with the "science" I think...

In the ocean there are problems with even more pollution now, and radiation from Fukushima leaks. Citing carbon dioxide as the only cause of problems seems like faulty reasoning to me. All of our abuse of the planet is catching up to us, and affecting our food supplies. Wild Caught is going to be a link to diseases from pollution and radiation and whatever else is coming.

I wish there was an easy solution, a quick-fix, but there isn't. The Bible tells us that we will destroy the Earth, not GOD.