Comments for PDS APES 8th Period 2009-10

Comment on Scribe Post – Population Solutions by Population Solutions | PDS APES Period 5

Population Solutions | PDS APES Period 5 — Sun, 12 Dec 2010 20:55:51 +0000

[...] Original post at: http://pdsblogs.org/pdsapes810/2009/12/07/scribe-post-population-solutions/ [...]

Comment on Scribe Post – Population Solutions by Population Solutions | PDS APES Period 8

Population Solutions | PDS APES Period 8 — Sun, 12 Dec 2010 20:55:23 +0000

[...] Original post at: http://pdsblogs.org/pdsapes810/2009/12/07/scribe-post-population-solutions/ [...]

Comment on Eyewitness to the Blowout by derrickwillard

derrickwillard — Mon, 24 May 2010 13:22:40 +0000

If anyone is still out there, check out this incredible pictures documenting the spill and efforts to contain it:

http://www.boston.com/bigpicture/2010/05/disaster_unfolds_slowly_in_the.html

Comment on Mr. W signs off… by johnosborn

johnosborn — Mon, 24 May 2010 03:34:22 +0000

Thanks for a great year

Comment on Greenwashing? by Mr. W signs off… | PDS APES 8th Period 2009-10

Mr. W signs off… | PDS APES 8th Period 2009-10 — Tue, 18 May 2010 12:43:25 +0000

[...] products whether you need them or not (that’s capitalism). They’ll throw in a little greenwashing and “ecoguilt” to get you to buy also… 3. I hope this course has not left you [...]

Comment on Oil Leak Video Released by derrickwillard

derrickwillard — Sun, 16 May 2010 15:59:19 +0000

Great NYTimes graphic on oil’s impact in aquatic food chains:
http://www.nytimes.com/imagepages/2010/05/05/us/05ecology_graphic1.html?ref=

Comment on What does your car breathe? by What does your car breathe?

What does your car breathe? — Sat, 15 May 2010 12:03:38 +0000

[...] See the rest here: What does your car breathe? [...]

Comment on Polar Bear by derrickwillard

derrickwillard — Fri, 14 May 2010 02:41:20 +0000

wow. that’s harsh…I’ve not seen that one

Comment on Last minute question on CFCs by syd lindblom

syd lindblom — Tue, 11 May 2010 01:51:19 +0000

Wow, that makes so much more sense now. Its amazing how that little number can make it so much simpler.

Comment on Last minute question on CFCs by derrickwillard

derrickwillard — Tue, 11 May 2010 00:35:49 +0000

Hey, Syd!

1. Not a positive feedback loop, just a cyclic reaction with Cl as the catalyst.
2. The free Cl molecule breaks down the O3. You’ve written the reaction wrong above.
Cl +O3 > ClO +02
That chlorine oxide compound is unstable, and the Cl comes free to destroy more…

That help?