Reply to Rapid growth of sea ice after slow start shows ocean heat cycle is already failing due to GW

Forum Index » Environment, Weather, and Green Living

Reply to "Rapid growth of sea ice after slow start shows ocean heat cycle is already failing due to GW "

Subject:

Emoticons





More smilies

Text Color: Font: Close Marks

[quote=Anonymous][quote=Anonymous][quote=Anonymous]Can any of the self-claimed” scientists” explain the part about sea levels falling in the polar regions as ice accumulates, while at the same time “local”(?) sea levels rising in the tropics. And water “piling up”?

Because I’ve always thought that sea level was universal around the planet. How can it become lower at the poles and higher at the equator? That sounds whack AF. [/quote]

I studied geodesy while getting my PhD. Basically water puts pressure in the Earth.  The Earth is an oblate spheriod (like a squahed ball), so gravity varies slightly depending on where you are.  As the distribution of water changes, the pressures around the earth change and so do the relative sea levels to land. Ice has a different density than water, so the more ice accumulated in the Poles, the different 'weight' or pressures around the center of the Earth.  That's  how I described it to my 7 year old and she understood, so I hope that helps.  I drew pictures for her which I can't do here.[/quote]

The variation in gravity due to the shape of the Earth is practically negligible. While ice accumulations results in falling sea levels, the most recent increase in ice coverage hasn't reversed the massive losses over the past decades. Further complicating measurements is the sinking of cities and coasts into the crust due to weight and aquifer depletion.[/quote]

Options

	Disable HTML in this message
	Disable BB Code in this message
	Disable smilies in this message

Review message

Search Recent Topics Hottest Topics