Submitted by Anonymous on Tue, 03/29/2011 - 19:23

hey how's it going!? I bet it is cold for you. Hi my name is Victoria, I'm in 6th grade in Mr.Wood's class he told us to write to you because he knew that you would love hearing from us. So how dose the seawater change its property? That's all I have for right now. Please write back. :)

Juan Botella

Hi Victoria, Mr. Wood was right. I am glad you wrote. You ask a very good question.
Water acquires its properties mostly at the sea surface where it exchanges
gases with the atmosphere, gets energy from the sun, evaporates water,
freezes water and receives precipitation. If any of those things were to
change, the water properties will change.
For example, we are putting a lot of CO2 in the atmosphere, so we expect
the amount of CO2 in the sea water to be larger than the amount 20 years
ago. By looking at water properties we can see if there has been more
freezing of surface waters or less, and so on.
Thanks for writing,
Juan.