Ozone-protection treaty had climate b...

Ozone-protection treaty had climate benefits, too

There are 2 comments on the Science Daily story from Aug 6, 2013, titled Ozone-protection treaty had climate benefits, too. In it, Science Daily reports that:

The 1987 Montreal Protocol phased out the use of chloroflourocarbons, or CFCs, a class of chemicals that destroy ozone in the stratosphere, allowing more ultraviolet radiation to reach earth's surface.

Join the discussion below, or Read more at Science Daily.

LessHypeMoreFact

Etobicoke, Canada

#1 Aug 7, 2013
One class of refrigerant with a very low GWP is (HFO-1234yf) otherwise known as 2,3,3,3-Tetrafluoropropene as a drop in replacement for R134a refrigerant, one of the most widely used refrigerants in cars, blowing agents, fire suppression, aerosol propellant etc.

http://en.wikipedia.org/wiki/2,3,3,3-Tetraflu...

Large, stationary units utilizing R22 are transitioning to
R-744 (CO2)(low efficiency)
R-717 (Ammonia)(toxic leaks)
R-290 (Propane)(explosive)
R-1270 (Propylene).(fire hazard)

More research needed there. But I have faith that a good drop in replacement will be found with a low GWP.
LessHypeMoreFact

Etobicoke, Canada

#2 Aug 7, 2013
Note: One thing I omitted is that high efficiency is ALSO an issue of GWP since the energy input is often generated from coal. This indirect GWP should be included in any assessment.

Tell me when this thread is updated:

Subscribe Now Add to my Tracker

Add your comments below

Characters left: 4000

Please note by submitting this form you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

Columbia University Discussions

Title Updated Last By Comments
News Climate change will force today's kids to pay f... Jul 19 so much hot air 1
News APNewsBreak: House reaches deal to greatly expa... Jul 14 anonymous 4
News Jesus Arrested as Illegal Immigrant in New Poli... Jun 30 Valerie 22
News New York's highest court welcomes first openly ... Jun 27 Jerry 12
News List of Demands Made by Illegal Immigrant Stude... Jun '17 spytheweb 2
News Investigation of Trump's charity wins Pulitzer ... Jun '17 yidfellas v USA 2
News Complaints about SoHa are ignorant to Harlem hi... Jun '17 Jewish Pete 1
More from around the web