ASHRAE Journal - May 2023 - 15
LETTERS
in 2021, but have yet to publish
results. And our climate models do
not adequately refl ect moisture or
moisture changes.
It would be appropriate to say
that carbon dioxide is the most
signifi cant anthropogenic GHG,
although even that statement
requires a comparison with water
vapor, which currently doesn't
exist. We do know that a 1 degree
increase in temperature results
in 10% more moisture in the
atmosphere (think psychrometric
charts). But it is uncertain the exact
form (invisible gas, clouds) such
moisture takes.
Tom Werkema, Member ASHRAE,
Louisville, Tenn.
LAWRENCE, BALARAS
RESPOND
We appreciate your interest and
feedback on the article. First, let
us state that we agree that the
wording in that sentence should
have stated that carbon dioxide is
the most signifi cant anthropogenic
greenhouse gas emission. You
do bring up the interesting point
about water and water vapor in
the atmosphere. Yes, water vapor
does also help trap the emitted
thermal radiation from the earth,
as a greenhouse gas does. But
water vapor in the form of clouds
also can serve as a cooling effect
by increasing the refl ectance of
incoming sunlight compared to
most earth surfaces below the
clouds (ice not withstanding).
Humans do contribute to a larger
atmospheric level of water vapor
through its release via things
like electric power plant and airconditioning
cooling towers (or
your boiling a pot of water for your
spaghetti dinner at home). As you
point out, more research and study
is needed on the comparative effect
of water vapor on the greenhouse
effect, and in particular the relative
contribution to any additional
anthropomorphic water emissions.
Thomas Lawrence, Ph.D., Fellow ASHRAE,
Athens, Ga.;
Costas Balaras, Ph.D., Fellow ASHRAE,
Vrilissia, Greece
Armawin™
professional
insulation
thickness
calculator
The quick and easy way to
find the optimal insulation
thickness for your project.
www.armawin.com
Get the app
for Android
& iPhone
M AY 2 0 2 3 ashrae.o rg ASHRAE JOURNAL
15
© Armacell, 2023
http://www.armawin.com
http://www.ashrae.org
ASHRAE Journal - May 2023
Table of Contents for the Digital Edition of ASHRAE Journal - May 2023
Contents
ASHRAE Journal - May 2023 - Intro
ASHRAE Journal - May 2023 - Cover1
ASHRAE Journal - May 2023 - Cover2
ASHRAE Journal - May 2023 - 1
ASHRAE Journal - May 2023 - Contents
ASHRAE Journal - May 2023 - 3
ASHRAE Journal - May 2023 - 4
ASHRAE Journal - May 2023 - 5
ASHRAE Journal - May 2023 - 6
ASHRAE Journal - May 2023 - 7
ASHRAE Journal - May 2023 - 8
ASHRAE Journal - May 2023 - 9
ASHRAE Journal - May 2023 - 10
ASHRAE Journal - May 2023 - 11
ASHRAE Journal - May 2023 - 12
ASHRAE Journal - May 2023 - 13
ASHRAE Journal - May 2023 - 14
ASHRAE Journal - May 2023 - 15
ASHRAE Journal - May 2023 - 16
ASHRAE Journal - May 2023 - 17
ASHRAE Journal - May 2023 - 18
ASHRAE Journal - May 2023 - 19
ASHRAE Journal - May 2023 - 20
ASHRAE Journal - May 2023 - 21
ASHRAE Journal - May 2023 - 22
ASHRAE Journal - May 2023 - 23
ASHRAE Journal - May 2023 - 24
ASHRAE Journal - May 2023 - 25
ASHRAE Journal - May 2023 - 26
ASHRAE Journal - May 2023 - 27
ASHRAE Journal - May 2023 - 28
ASHRAE Journal - May 2023 - 29
ASHRAE Journal - May 2023 - 30
ASHRAE Journal - May 2023 - 31
ASHRAE Journal - May 2023 - 32
ASHRAE Journal - May 2023 - 33
ASHRAE Journal - May 2023 - 34
ASHRAE Journal - May 2023 - 35
ASHRAE Journal - May 2023 - 36
ASHRAE Journal - May 2023 - 37
ASHRAE Journal - May 2023 - 38
ASHRAE Journal - May 2023 - 39
ASHRAE Journal - May 2023 - 40
ASHRAE Journal - May 2023 - 41
ASHRAE Journal - May 2023 - 42
ASHRAE Journal - May 2023 - 43
ASHRAE Journal - May 2023 - 44
ASHRAE Journal - May 2023 - 45
ASHRAE Journal - May 2023 - 46
ASHRAE Journal - May 2023 - 47
ASHRAE Journal - May 2023 - 48
ASHRAE Journal - May 2023 - 49
ASHRAE Journal - May 2023 - 50
ASHRAE Journal - May 2023 - 51
ASHRAE Journal - May 2023 - 52
ASHRAE Journal - May 2023 - 53
ASHRAE Journal - May 2023 - 54
ASHRAE Journal - May 2023 - 55
ASHRAE Journal - May 2023 - 56
ASHRAE Journal - May 2023 - 57
ASHRAE Journal - May 2023 - 58
ASHRAE Journal - May 2023 - 59
ASHRAE Journal - May 2023 - 60
ASHRAE Journal - May 2023 - 61
ASHRAE Journal - May 2023 - 62
ASHRAE Journal - May 2023 - 63
ASHRAE Journal - May 2023 - 64
ASHRAE Journal - May 2023 - 65
ASHRAE Journal - May 2023 - 66
ASHRAE Journal - May 2023 - 67
ASHRAE Journal - May 2023 - 68
ASHRAE Journal - May 2023 - 69
ASHRAE Journal - May 2023 - 70
ASHRAE Journal - May 2023 - 71
ASHRAE Journal - May 2023 - 72
ASHRAE Journal - May 2023 - 73
ASHRAE Journal - May 2023 - 74
ASHRAE Journal - May 2023 - 75
ASHRAE Journal - May 2023 - 76
ASHRAE Journal - May 2023 - 77
ASHRAE Journal - May 2023 - 78
ASHRAE Journal - May 2023 - 79
ASHRAE Journal - May 2023 - 80
ASHRAE Journal - May 2023 - Cover3
ASHRAE Journal - May 2023 - Cover4
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_FYONLJ
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2024november_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2024november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_BDMHLG
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_WJDGRY
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ATMAHK
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_VHQRAW
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XGMDXI
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_YELQLJ
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QJLWMC
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_MCDEBX
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_WNYSQY
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XATVOD
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_FJSHSS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_CCBZDS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XDEFVG
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2023november_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2023november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_VHGNBL
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_WPKBNJ
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_UUVCDE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RTGDEW
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2023
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_LKRFXS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_AZSOFG
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ERCDBH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QWDFRV
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JHGVDF
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OPUYHG
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SREIBM
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_LRTGLK
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OKRFGH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2022november_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2022november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_TZSERA
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_LVRUIX
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RPTVYZ
https://www.nxtbook.com/nxtbooks/ashrae/mini_pub_catalog
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XIYTGD
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2022
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RFGDOB
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_PABXNU
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_REMKLS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_PICVBT
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_AOYTVW
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JQOPLS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_IOYTBC
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SGAJJF
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_IGHYER
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_PDRKLS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2021november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2021november_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_XCODFR
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QSLFGO
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ILKVNM
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2021
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OPDJKD
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_VJKSRY
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SDHUTC
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JPPKRR
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SDLTTH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_CKLLES
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_SLDOX
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_HJETUK
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_OLUHGE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2020october
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2020october_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ZERDGH
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_QVMNEO
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_RTPOKE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_BBATRE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_STUBMW
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_TPEMPE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_JNMKDS
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_FBTTPA
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_WQMMNE
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_TVBRYN
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_showguide2020
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_KTUZMA
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_ABEDGD
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201910
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201909
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2019septmeber_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2019september
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201908
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201907
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201906
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201905
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201904
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2019april
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201903
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2019march
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201902
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201901
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_showguide2019
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2018december
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2018november
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2018fall_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2018fall
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_2018october
https://www.nxtbook.com/nxtbooks/ashrae/ashraemexico_2018
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201810
https://www.nxtbook.com/nxtbooks/ashrae/ashraeinsights_201806
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201805
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201804
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201803
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201712
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201711
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201710
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2017fall_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2017fall
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201709
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201705
https://www.nxtbook.com/nxtbooks/ashrae/ashrae_meetinginsert_201610
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2016fall_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2016fall
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_acrexindia
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2015summer_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_amca_2015summer
https://www.nxtbook.com/nxtbooks/amca/2014summer2
https://www.nxtbook.com/nxtbooks/amca/2014summer
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_acma_2014summer
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201311
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201309
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_acmasupp_2013fall
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201305
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201303
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2013winter
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201211
https://www.nxtbook.com/nxtbooks/ashrae/achr_expo_mexico2012
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201209
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201208_v3
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201208_v2
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2012summer
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201205
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201203
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2012winter
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201111_v2
https://www.nxtbook.com/nxtbooks/ashrae/ashraejournal_201109_v2
https://www.nxtbook.com/nxtbooks/ashrae/pubcatalog_2011summer
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201105
https://www.nxtbook.com/nxtbooks/ashrae/meetingplanner_201103
https://www.nxtbookmedia.com