Letters and Science C70V - Lecture 23

Descriptive Introduction to Physics

Category:

Education

Tags:

• uc
• berkeley
• ucberkeley
• webcast.berkeley
• cal
• Spring 2010

[kurtilein3]

the problem with fertilizing the seas is, as far as i know, that the dead plant material with all the carbon stored in it will sink down, and will there partially be eaten and digested by bacteria. this depletes some of the oxygen in the deep seas, and that oxygen might be coming in incredibly slowly through some kind of cycle if we are unlucky. so we could just globally exterminate all life in the deep seas if we get it wrong, if we deplete an oxygen supply that replenishes too slow.

[marsCubed]

I read recently;

"Tests conducted in the north Pacific by a Canada-U.S. team show that enriching water with iron favours the growth of Pseudo-nitzschia, algae that pump out a potent neurotoxin"

"The findings "raise serious concerns" about large-scale iron fertilization, the team reported in the latest issue of the journal Proceeding of the National Academy of Sciences"

"The iron-rich environment also appeared to increase the amount of neurotoxin, domoic acid"

No easy fix it appears.

[jenko701]

All these are great