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Barnett,!J.,!Tschakert,!P.,!Head,!L.!and!Adger,!W.!N.!(2016)!A!science!of!loss.!
Nature'Climate'Change'6(11),!976-978.!
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A"Science"of"Loss"
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Jon!Barnett,!Petra!Tschakert,!Lesley!Head!and!W.!Neil!Adger!
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Avoiding"and"ameliorating"losses"from"climate"change"requires"
interdisciplinary"and"socially"engaged"research"that"explains"what"people"
value"highly,"how"climate"change"imperils"these"most"valued"phenomena,"
and"strategies"for"embracing"and"managing"grief."
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Industrialization,!land!use!change,!colonization!and!mobility!have!effected!a!step!
change!in!the!loss!of!places,!populations,!social!practices!and!species!over!the!
past!five!hundred!years.!Climate!change!threatens!to!accelerate!losses!across!
social!and!ecological!domains,!leading!the!UNFCCC!to!establish!a!mechanism!to!
address!these!potential!losses1.!However,!the!concept!of!loss!remains!poorly!
theorised!and!methods!to!explain!it!are!few2.!We!outline!key!elements!of!a!
science!of!loss!that!can!better!explain!how!losses!arise!and!help!minimise!
regrettable!and!irreversible!outcomes!of!climate!change.!
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Loss""
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Loss!arises!when!people!are!dispossessed!of!things!that!they!value,!and!for!which!
there!are!no!commensurable!substitutes.!For!example,!almost!all!people!value!
their!health,!personal!safety,!sense!of!belonging,!esteem,!and!relative!freedom3.!
These!are!known!as!the!primary!goods!that!are!essential!for!a!free!and!dignified!
life,!and!they!are!the!raison!d'être!of!collective!action,!legal!rights,!and!the!state.!
Climate!change!amplifies!the!risk!of!their!loss!through!many!pathways,!including!
increases!in!water-borne!illnesses,!damage!to!housing!from!extreme!events,!
displacement!of!communities,!and!climate-induced!poverty!traps.!!
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Yet!there!are!many!more!phenomena!that!people!value!that!are!at!risk!from!
climate!change,!but!which!are!overlooked!because!they!cannot!be!captured!by!
standard!metrics.!These!include!phenomena!that!constitute!the!meaning!of!
entire!societies,!for!example!landscapes!(such!as!ice!fields);!places!(such!as!
neighbourhoods);!cultures!(such!as!those!of!Indigenous!peoples);!and!social!
cohesion!(such!as!belonging!to!a!community!of!knowledge!or!practice).!They!also!
include!valued!phenomena!that!arise!at!very!fine!spatial!and!temporal!scales!of!
experience,!for!example!personal!items!(such!as!photographs);!material!artefacts!
(such!as!the!graves!of!ancestors);!daily!practices!(such!as!gardening);!and!
occupational!identities!(such!as!those!of!farmers!and!fishers).!
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When!widespread,!some!losses!lead!to!cascading!social!and!environmental!
problems.!For!example,!the!loss!of!places!and!homes!and!lives!due!to!weather!
extremes!and!slow!onset!processes!can!in!turn!cause!problems!associated!with!
migration,!personal!safety,!resource!degradation,!and!public!health!and!security4.!!!
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Although!there!are!many!processes!that!can!ameliorate!the!effects!of!
dispossession!of!highly!valued!material!and!non-material!phenomena,!there!can!
be!no!effective!compensation!for!their!loss!because!they!are!incommensurable!
(cannot!be!compared)!with!any!possible!substitutes5.!This!observation!is!backed!
by!evidence!from!anthropology,!human!geography!and!social!psychology6.!This!
incommensurability,!the!likely!uneven!distribution!of!losses!within!and!between!
generations,!and!the!failure!of!responsible!actors!to!mitigate!emissions!and!
facilitate!adaption!all!make!the!issue!of!loss!a!profound!ethical!problem.!
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A"science"of"loss"
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A!science!of!losses!arising!from!climate!change!therefore!requires!knowledge!of!
three!distinct!dimensions:!1)!what!people!value!highly,!how!things!come!to!be!
valued,!and!how!values!vary!over!space!and!time;!2)!the!climatic!and!social!
drivers!of!undesirable!changes!that!put!at!risk!things!that!people!value;!and!3)!
should!losses!arise,!the!means!and!extent!to!which!suffering!can!in!turn!be!
minimised.!!
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What'people'value'
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Value!formation!is!not!well!understood!in!any!discipline!despite!a!diversity!of!
theories,!approaches,!and!methods.!Values!are!constructed!through!cultural!
influences!and!worldviews,!narratives!that!help!make!sense!of!places!and!ways!
of!living,!markets!and!marketing,!family!and!social!networks,!and!people’s!lived!
experiences,!relationships!with!nature,!memories!and!aspirations7.!!!
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While!there!is!still!much!to!know!about!how!things!come!to!be!valued,!there!is!
far!more!certainty!about!the!nature!of!valued!things!and!how!these!vary!across!
space.!For!example,!much!recent!research!from!anthropology,!geography,!and!
psychology!shows!that!artefacts,!heritage,!homes,!knowledges,!places,!practices,!
and!social!relations!are!at!risk!from!climate!change8.!!
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Values!are!‘situated’!in!specific!social!contexts!in!that!they!are!influenced!by!
peoples’!experiences!and!daily!practices,!and!the!places!and!cultures!in!which!
these!are!embedded.!Knowledge!of!loss!therefore!requires!understanding!this!
situated9!and!inherently!subjective!nature!of!values,!and!how!these!vary!across!
the!diversity!of!human!experiences.!Producing!such!knowledge!is!a!core!task!for!
those!social!sciences!able!to!ground!loss!in!the!social!and!environmental!milieu!
of!people’s!lives,!and!to!ascertain!the!aspirations!of!those!who!stand!to!lose.!It!is!
an!exciting!science!characterised!by!innovative!methodologies,!including!
experimental!psychology!and!economics,!ethnographies,!participatory!methods,!
methods!to!understand!how!people’s!bodily!experiences!and!senses!influence!
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their!cognition,!landscape!value!mapping,!mobility!mapping,!and!the!use!of!
mobile!technologies10.!
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Drivers'of'change'
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The!second!element!of!a!science!of!climate!loss!is!to!understand!how!loss!might!
arise!through!climate!and!other!associated!drivers!of!change,!and!how!the!risk!of!
loss!varies!across!social!groups!and!places.!It!is!now!well!understood!that!
vulnerability!to!climate!change!is!as!much!socially!produced!through!
demographic,!economic,!political!and!cultural!factors!as!it!is!a!function!of!
changes!in!climate11.!These!social!determinants!of!vulnerability!to!climate!
change!are!documented!across!a!wide!range!of!risks!and!contexts,!but!they!are!
very!difficult!to!factor!into!attribution!models!12.!New!forms!of!spatial!analysis!
promise!better!integration!of!social!and!ecological!factors!for!the!purposes!of!a!
more!integrated!understanding!of!the!drivers!loss!13.!
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Given!the!challenges!of!attribution,!the!science!of!loss!must!be!cautious.!Even!in!
small!and!supposedly!highly!vulnerable!places!such!as!atolls!the!response!of!
ecosystems!to!climate!change!is!uncertain!and!the!scope!for!adaptation!to!avoid!
loss!is!even!less!well!known!14.!Thus,!a!minimum!standard!for!a!science!of!loss!is!
that!it!does!not!claim!to!predict!where!and!when!losses!will!arise,!but!rather!
identifies!where,!for!whom,!and!why!certain!losses!would!be!unacceptable!and!
intolerable.!
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Predictions!of!loss!may!themselves!contribute!to!loss.!Dramatic!narratives!about!
future!crises!have!been!shown!to!influence!the!risk!of!crises!occurring.!Several!
studies!explain!how!talk!of!catastrophic!climate!futures!rarely!leads!to!mitigation!
and!adaptation!but!instead!results!in!fatalism,!self-blame,!underinvestment!in!
vulnerable!places,!and!even!accelerated!degradation!of!natural!resources!-!all!of!
which!amplify!the!drivers!that!create!loss15.!This!situation!has!parallels!in!the!so-
called!green!paradox!where!the!possibility!of!fossil!fuels!depreciating!gives!
signals!for!increased!unsustainable!extraction!in!the!present!day.16!
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Nevertheless,!denying!the!possibility!of!loss!is!naïve!given!that!the!Intended!
Nationally!Determined!Contributions!(INDCs)!under!the!Paris!Agreement!fall!
short!of!avoiding!significant!levels!of!climate!change!with!their!associated!
biophysical!and!social!consequences17,!and!there!is!limited!progress!on!
adaptation!in!vulnerable!places.!Failure!to!confront!the!possibility!of!loss!also!
contributes!to!increased!anxiety!for!individuals,!and!collective!paralysis!in!
climate!change!mitigation!and!adaptation18.!!
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The!risk!that!increased!emphasis!on!loss!may!create!perverse!incentives!can!be!
circumvented!by!research!with!rather!than!about!the!people!who!stand!to!lose.!
In!the!same!way!that!a!science!of!loss!requires!situated!knowledge!about!those!
highly!valued!aspects!of!life!and!well-being!that!are!at!risk,!it!also!requires!
grounded!knowledge!about!desired!futures,!the!contextual!drivers!of!loss,!and!
existing!and!potential!adaptations.!This!is!best!done!through!co-production!of!
knowledge!where!affected!communities!and!researchers!work!together!to!
generate!knowledge!and!engage!with!decision!makers.!An!accurate!and!practical!
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science!of!loss!must!therefore!engage!with!the!people!and!places!where!loss!is!
likely!to!be!experienced.!
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Engaging'with'loss''!
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Though!unsettling,!embracing!the!possibility!of!loss!may!be!the!best!means!of!
offsetting!its!harm.!Co-produced!and!situated!research!with!communities!where!
loss!is!likely!can!give!them!ownership!of!the!knowledge!of!loss!and!help!them!to!
come!to!terms!with!it.!Such!engagement!has!the!potential!to!stimulate!collective!
responsibility,!creativity,!and!new!skills19.!It!can!also!change!expectations!of!the!
future!in!ways!that!transform!perceived!losses!to!something!less!existentially!
troubling.!For!example,!anticipatory!history!approaches!that!highlight!the!
dynamic!nature!of!the!past!and!link!these!to!dynamic!futures!have!palliative!
potential!through!describing!and!visualising!landscapes!as!dynamic,!transient,!
and!liable!to!change20.!
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There!is!a!long!tradition!of!memorialising!places,!practices,!and!peoples!who!
have!been!lost,!and!these!take!diverse!forms!including!films,!graves,!museums,!
paintings,!photographs,!rituals,!sculptures,!shrines,!stories,!and!songs.!These!help!
to!manage!grief!and!sustain!the!association!with!what!would!otherwise!have!
been!forgotten.!A!science!of!loss!should!therefore!combine!approaches!to!
anticipate!future!loss!with!insights!and!methods!from!critical!heritage!studies,!
archaeology!and!museum!studies,!all!of!which!engage!with!people’s!relationships!
with!places,!and!help!to!understand!and!remember!loss21.!!!
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Loss!can!be!planned!for!better,!or!ignored!for!worse.!For!example,!research!on!
community!resettlement!shows!that!while!resettlement!should!be!avoided,!the!
harms!that!arise!can!be!minimized!given!adequate!time!for!consultation!and!
planning,!and!through!practices!such!as!compensating!people!for!economic!
losses,!maintaining!community!cohesion!and!social!networks,!and!directing!
resources!to!both!resettled!and!host!communities22.!!
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Legal!cases!where!Indigenous!groups!have!sought!reparations!for!losses!reveal!
both!the!incommensurable!nature!of!loss!and!the!limits!to!legal!processes!in!
recognising!and!responding!to!loss23.!Legal!systems!tend!to!interpret!loss!
through!the!lens!of!property,!which!in!the!case!of!land!not!only!narrows!the!
scope!of!the!issue,!but!also!leads!to!decisions!that!fail!to!account!for!the!ways!of!
knowing,!social!relations,!forms!of!identification,!cultural!practices,!and!senses!of!
place!and!community!bound!in!land.!!
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The!tragedy!of!loss!underscores!the!importance!of!risk!aversion!in!decision-
making.!In!decision!theory!the!risk!of!irreversible!loss!is!addressed!through!
precautionary!approaches!that!avoid!the!worst!possible!outcome!of!any!
decision.24!Indeed,!these!principles!are!embodied!in!the!UNFCCC’s!ultimate!
objective!to!avoid!‘dangerous’!climate!change,!and!the!requirement!that!Parties!
act!in!a!precautionary!manner.!In!this!sense!the!contemporary!‘loss’!agenda!in!
climate!policy!is!a!powerful!reminder!that!climate!impacts!are!best!avoided!
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through!mitigation.!
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The!risk!of!losses!arising!from!climate!change!is!high!and!cannot!be!ignored.!
Priorities!for!a!science!of!loss!outlined!here!can!help!better!understand!and!
prepare!for!loss.!Understanding!loss!requires!a!more!situated!and!socially!
engaged!science!that!combines!theories!and!methods!from!the!humanities!and!
the!social!and!natural!sciences.!Researchers!need!to!get!into!the!field!and!work!
with!affected!communities!as!this!is!both!a!sine'qua'non!of!robust!knowledge!
about!loss!and!an!important!means!by!which!communities!can!understand!the!
risk!of!loss!and!begin!to!respond!in!ways!that!lessen!future!suffering.!Such!a!
science!must!go!well!beyond!the!frontiers!of!contemporary!climate!change!
research!to!include!knowledge!of!values,!processes!of!coproduction,!and!
courageous!attempts!to!engage!with!loss!to!capture!its!productive!possibilities!
and!minimize!its!destructive!consequences.!
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