It is currently Wed Oct 01, 2014 1:17 pm

All times are UTC - 8 hours [ DST ]




Post new topic Reply to topic  [ 3 posts ] 
Author Message
PostPosted: Thu Dec 20, 2012 7:52 pm 
Offline
Gold Member

Joined: Wed Jul 28, 2010 12:05 pm
Posts: 800
Location: Claremont, CA
Delivery Date: 03 Jun 2011
Leaf Number: 2400
Realclimate.org has posted links to YouTube videos of the best lectures on climate from the recently concluded AGU (American Geophysical Union) annual meeting.

http://www.realclimate.org/index.php/archives/2012/12/some-agu-highlights/#more-13674

I have watched and recommend these, in this order:

Sagan Lecture: Piers Sellers “The Race to Understand a Changing Planet”
Charney Lecture: Drew Shindell “Mitigating Near-Term Climate Change While Advancing Human Development”
Tyndall Lecture: Ray Pierrehumbert: “Successful Predictions”

The Pierrehumbert lecture is quite technical (and sobering), but he is one of the very foremost experts on atmospheric physics.

Summary of some of the main points from these lectures:

The climate is changing faster than predicted.
The extent of summer Arctic sea ice is shrinking faster than predicted.
The anthropogenic emission rate has increased rather than slowed as hoped.

The models have been substantially improved with:
Added biological and biochemical feedback effects
Improved physics in the atmosphere, ocean, and cryosphere
Higher resolution
Improved sensor data

The result has been a steady improvement in prediction quality.
Several of the prediction failures of the last few decades have been resolved, with sensor data now matching the models.
Improved resolution shows that the warming at temperate latitudes is mostly concentrated on the land, which means the human impact is intensified.

On the current BAU (Business as Usual) trajectory, the climate will be quite nasty by mid-century, not 2100.
Besides the retreat of glaciers, much of the snow pack at temperate latitudes will be gone by mid-century, putting stress on food production

Control of methane emissions and Carbon black should be politically sellable because these measures will generate substantial local near-term improvements in health. Both methane control and CO2 control are necessary to achieve a leveling-off of global temperature rise at 2 C.

_________________
LEAF Ocean Blue SL, "100 % Electric" decals, Delivered June 3, 2011
Sold June 2014 27K miles, 18% capacity loss, 1 bar, 5.0 mi/kWh.
Solar 4.6 KW DC with both string and micro-inverters.


Top
 Profile  
 
PostPosted: Thu Dec 20, 2012 8:22 pm 
Offline
Gold Member

Joined: Sat Jan 22, 2011 11:06 am
Posts: 1254
Location: SLC, UT
Delivery Date: 08 Dec 2011
Leaf Number: 15656
If you want to see climate change as it is happening, you need to go see this movie. It is very well done.

http://www.chasingice.com/see-the-film/trailer/

_________________
2012 SL Delivered 12/08/2011
100% charge on 01/01/2014 = GID 242 - 18,126 miles AH=56.95 (85.96%)
100% charge on 08/01/2014 = GID 238 - 22,118 miles AH=56.97 (85.98%)


Top
 Profile  
 
PostPosted: Thu Dec 20, 2012 11:58 pm 
Offline
Gold Member

Joined: Fri Apr 23, 2010 3:43 pm
Posts: 5275
Location: San Antonio
tbleakne wrote:
Realclimate.org has posted links to YouTube videos of the best lectures on climate from the recently concluded AGU (American Geophysical Union) annual meeting...

Thank you for these - very much!

_________________
“Anyone who believes in indefinite growth in anything physical, on a physically finite planet, is either mad or an economist.”
Kenneth E. Boulding

There are no passengers on Spaceship Earth. We are all crew.
Marshall McLuhan


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 8 hours [ DST ]


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Advertise on the forum | Upgrade your account


© My Nissan Leaf Forum - part of the MyElectricCarForums.com Group