When social sciences meet the bio-physical sciences: energetics perspectives for socio-ecological sustainability.

. In this chapter, the author tries to suggest that social sciences can help the understanding of current critical socio-ecological dynamics. Social sciences have always been suspicious of idea that social phenomena can be investigated from a materialist point of view. Despite the idea that in every society there is a clearly determined group of phenomena separable from those that form the subject matter of other sciences of nature, this reflection suggests that social scientists developed significant analysis of the relationships between society and nature. Here the author tries to show that a social look could cast new lights upon the connections and interdependences between economic crisis and ecological crisis. The basic idea is that the decreasing natural fertility of capital is the cause of the decreasing global rate of profit of global economy and consequently the cause of the acceleration of new ways of nature appropriation, which can only deepen the current crisis.


Sociology and nature
Fr decades scigists ivestigated the sciety as if ateriaity did t atter 1 The decupig f sciety ad ature hwever had t be writte i the evuti f scia scieces ar arx gruded a his aaysis f capitaist sciety-startig fr cdity ad edig with fictitius capita- the diaectic f sciety ad ature The abur prcess as we have ust preseted it i its sipe ad abstract eeets is purpsefu activity aied at the prducti f usevaues It is a apprpriati f what exists i ature fr the requireets f a It is the uiversa cditi fr the etabic iteracti (Stffwechse) betwee a ad ature the everastig atureipsed cditi f hua existece ad it is therefre idepedet f every fr f that existece r rather it is c t a frs f sciety i which hua beigs ive" 2 The characteristic f this etabic iteracti is that ature is huaised whie e are aturaised Its fr is i each case histricay deteried abur pwer that 'ateria f ature trasferred t a hua rgais' acts  the aterias f ature which are utside a it is therefre thrugh ature that ature is trasfred e icrprate their w essetia frces it atura bects which have uderge hua abur Thrugh the sae prcess atura thigs gai a ew scia quaity as usevaues icreasig i richess ver the curse f histry Scigists such as ax Weber eve thugh they reached the ccusi that sciety ad ature ust be separated fr theretica ad epirica reass were fte fasciated by the chice t adit the  hua" t their tgy I a very caustic verview that strgy criticied Wihe stwad's b  scia eergetics 3 ax Weber bserved Athugh the fregig bservatis ight have give the ipressi that I beieve the eergetic viewpit t be cpetey ufruitfu fr ur discipie this is t y view It is etirey prper at se tie t tae it accut the physica ad cheica baace sheets f techica ad ecica devepeta prcesses… We cud beefit fr his discussis as we ad certaiy his geera cet that it is ecessary t tae it accut a f the stateets that resut fr the appicati f the aws f eergy t scia phee deserves ur ureserved agreeet" 4 Here Weber acwedged that the ctributi f physica scieces was eeded t uderstad scia pheea rever fr Weber the expasi f capitais is t cceivabe withut taig it csiderati the avaiabiity f eergy fr its purpses i the fr f ptetia wr beig it ivig bdies r dead achies Fr whe asceticis was carried ut f astic ces it everyday ife ad bega t diate wrdy raity it did its part i buidig the treedus css f the der ecic rder This rder is w bud t the techica ad ecic cditis f achie prducti which tday deterie the ives f a the idividuas wh are br it this echais t y thse directy ccered with ecic acquisiti with irresistibe frce Perhaps it wi s deterie the uti the ast t f fssiied ca is burt" 5 ie Durhei scupted scigy where the cstrait that scia facts exercised up idividuas seeed aagus t atura facts shapig scieties He was as aware ie a his cteprary scigists that physica cditis shape scieta evuti hwever he caied a very cear disticti betwee these tw types f cerci cig fr the physica" r the scia" There is a wrd f differece separatig a physica fr a ra eviret The pressure exerted by e r severa bdies  ther bdies r eve  ther wis shud t be cfused with that which the grup csciusess exercises  the csciusess f its ebers What is excusivey pecuiar t scia cstrait is that it stes t fr the uyiedigess f certai patters f ecues but fr the prestige with which certai represetatis are edwed" 6 Csequety he cud cai that eve every idividua dris seeps eats r epys his reas ad sciety has every iterest i seeig that these fuctis are reguary exercised these are t scia facts If therefre these facts were scia es scigy wud pssess  subect atter pecuiary its w ad its dai wud be cfused with that f bigy ad psychgy" Accrdig t Durhei i every sciety there is a ceary deteried grup f pheea separabe because f their distict characteristics fr thse that fr the subect atter f ther scieces f ature Here he described a stabe separati betwee atura ad scia pheea eary a priet scia theries edrsed this tgy I recet decades the situati has bee iverted ay schars are caig fr the reiserti f the ateria i scia scieces As argued by Dave Eder Vass 7 Scia etities are fte cpsed f bth hua agets ad hua ateria bects ad that bth ay ae essetia ctributis t their causa ifuece I such cases the causa ifuece f scia structures shud be attributed t the eerget causa pwers f what I ca scitechica etities" I agree that the scia is t reducibe t se id f hybridity The scia rder ad its causa dyaics ste fr a diaectic betwee the ateria ad the iateria the atura ad the scia the ccrete ad the abstract Hua histry is aways as atura histry because hua beigs ca ever cpetey dissciate theseves fr the atura wrd ature is iextricaby etwied with hua histry This iextricabiity" taes the fr f a asyetric diaectic" betwee tgies the atura" ca survive withut the scia" ad reatis with it but this atter cat survive withut the ature" it eeds aways a ateria basis  which it deveps its ateria ivig There is t reciprcity fr the side f the atura" because it expects thig t retur fr the scia" i respse t its iput This reatiship ca be defied as sethig fr thig" The scia hwever expects sethig fr the atura it expects what it eeds t survive icheae Cara therises the tgica asyetry that exists betwee the tw reas-aey that athugh the biphysica ca exist withut the scia the cverse is categricay ipssibe If we cceptuaise the tw reas as beig utuay cstitutive f each ther hwever the hw is this asyetrica reatiship expaied 8

Energy, material fertility, and capitalism
Our "living together" is profoundly rooted in and organised around large concentrations of energy and raw materials that support and absorb growing volumes of activities. The civilisations, or cultures of humankind, also, may be regarded as a form or organisation of energy [9]. This observation, that societies or the "forms of human existence" and their differences and powers "are" organisations or forms of energy, might seem trivial, however, it has radical consequences for social theory and for a new reading of the ongoing dynamics of global capitalism.
The global economy depends on energy for the purposes of value creation, profit maximisation and capital accumulation, however, this material and energy regime seems to be completely unsustainable, and increasingly untenable. The horizon that emerges due to the ecological crisis caused mainly by fossil energy use -climate change, nitrogen cycle alteration, biodiversity reduction, peak of fossil energy, peak of raw materials -has crucial and problematic elements for either earth system dynamics or world-ecology reproduction, and global capitalist accumulation. The most important one is the decreasing "natural fertility of capital", in other words the availability of cheap fossil energy and raw materials needed to capture living labour. This dynamic shapes the ratio between dead labour and living labour, between carriers of value and valorising labour, or, in other words, the organic composition of capital. As Marx wrote: "There is just one thing to be noted here: the natural wealth in iron, coal, wood, etc., which are the principal elements used in the construction and operation of machinery, presents itself here as a natural fertility of capital and is a factor determining the rate of profit irrespective of the high or low level of wages" [10].
Marx sensed that the material basis of the capital accumulation process could shape its magnitude and speed of reproduction. The "natural wealth" here evoked by Marx includes energy carriers such as coal, gas, and wood; raw materials that directly enter the process of production such as cotton, wool, linen, iron; and finally the raw materials used to build machinery, such as iron, wood, leather. Fluctuations in the price of such materials affects the rate of profit, falling and rising inversely to the price of the raw material. This shows, among other things, the importance of the low price f raw aterias fr gba idustry The st critica aspect f such dyaics is the avaiabiity f the fssi eergy ad raw aterias eeded t absrb wr supprt vaue ad eep aive the achie f capita accuuati A secd critica aspect is the ievitabiity f givig up fssi fues because f gba warig A eergetic recsiderati f the dyaics f capitais highights hw the reatiship betwee capitais ad eergy has graduay bece re cpex ad iterdepedet The avaiabiity f diversified ad itesive fssi eergy surces ies at the base f the wrd's capita expasi ad the particuary eergetic sciety that it has bee abe t geerate Capitais has trasfred the geeric extera ad evireta cditis f its w birth i a itera cditi f its w reprducibiity ad expasi Fssi eergy irreversiby becae a itera cditi f capitaist accuuati 11 12 ad i dig s as the fudatia cditi f hua reprducti As acwedged by ta the ecy syste is the cpex utce f the cbiati f edsatic ad exsatic eergy r i ther wrds f the cbiati f the wr f huas achies ad ature

Between materiality and immateriality
Scia scietists are fte reuctat t refect up eergy perhaps because they d t fid the bect f this refecti very cear Siiar t ther tis such as stregth wi wr ad ey eergy appears t be bth sethig iateria icrprea abstract spiritua ad sethig ateria ccrete ad physica This abivaece is iey the reas that scigists d t egage i studyig eergy r perhaps it is its ateria side that put scigists at discfrt Eergy is evidet y i its effects Eergy is t i itsef stuff it is sethig that a stuff has I itsef eergy reais uw a uiversa abstracti a eusive subect a restess activity As such i its essece eergy is sethig iaccessibe ad pre ateria 13 As caied by the physicist Frederic Sddy Eergy see ay say is a ere abstracti a ere ter t a rea thig As yu wi I this as i ay ather respects it is ie a abstracti  e wud dey reaity t ad that abstracti is weath Weath is the pwer f purchasig as eergy is the pwer f wrig I cat shw yu eergy y its effects  Abstracti r t eergy is as rea as weath  I a t sure that they are t tw aspects f the sae thig" 14 The physicist Richard Feya 15 stressed that we have  wedge f what eergy is… It is a abstract thig i that it des t te us the echaiss r the reass fr the varius frua" As ted by Richard Adas eergy frs equiibriu structures ad stabiity describe states r cditis but they have itte eaig apart fr the dyaics thrugh which they are aifest It is i the quaity f iheret dyaics that the ccept f the eergy fr" beces usefu 16 Csequety access t a uderstadig f eergy is pssibe y thrugh ateriay experiecig its atura r artificia frs ad the wr that it puts i ti I shrt eergy cat be traced bac t its preateriaity that is t its abstract existece it ca be w whe after it is captured ad trasfred by atter r ivig beigs it beces wr that aes evets Give the dieas it ebdies eergy deserves t be apprached ad carefuy scrutiised i a dyaic way payig particuar atteti t its trasfratia ad ccrete prcesses Eve thugh its effects are sefevidet eergy reais a abstracti i tw ways first because f its itrisic trasfratia pwer ad secdy because it represets the itrisic vaue f cdities i the fr f hua eergy expediture Uderstadig eergy tgy is pssibe by studyig the ateriaity f its effects its trasfrative capacity its abiity t put wr it ti ad its cetraity i prducti distributi ad csupti prcesses Eergy has e surce the su (the ther is gethera cig fr the earth) but there are ay physica carriers cverters ad frs -uscuar ietic thera eectric gravitatia -that cstitute its erus trasfrative capacity hece the difficuty f uderstadig it iediatey i e cgitive syste Eergy has a utipe tgy r a tgy ade f utipe reaities s it is iterestig t try t deterie hw it ves ad what it des The idea that we are w ivig i a ecy that teds t iateriaity ad that ecic grwth is w decuped fr eergy ad raw aterias csupti is a yth that is difficut t fight Fr exape fiacia arets which biise erus auts f fictitius capita exert rather strg pressures  the scaed rea ecy icudig ipsiti f the payet by debtrs f debts ctracted with fiacia creditrs (bas ad fuds) payets that are y pssibe if rea grwth rates reai high Fiacia capita idirecty stregthes ecic grwth ad csequety the icreased csupti f eergy ad raw aterias athugh a icrease i efficiecy i their use ca partiay ffset this tred Recet ecic crises ad fiacia istabiity have t y uderied the east iertia scia rder typica f capitaist scieties but are as fueed by grwig sciecgica disrder where ay (sci ) ca ecsystes ad perhaps eve the st cpex Earth Syste" d t respd adequatey t the prcesses f gba capitaist accuuati Capitais is a syste that biises erus quatities f eergy ad raw aterias fr the prducti distributi ad csupti f cdities ad this is the reas fr its high evireta ipact It is as a syste that ais t extract icreasig quatities f vaue fr ay etity capabe f geeratig it idifferet t the particuar fr i which it is preseted The ecgica crisis thus etais the defiitive abstracti f the wr f ature whereas the dead wr f ature (the ateria weath depsited after es f wr) is uder aretisati ad is used t capture ivig abur

Work/energy
The wr that eergy puts it ti is a ey feature f its tgy Wr beces the ey t readig the scia diesi f eergy I hd here that the gba ecic prcess ais t trasfr eergy ad atter particuary fssi eergysurces it abureergy thus prducig cdities ad utiatey vaue The eergy capacity which I csider here is t y the abiity t iduce a chage i a give state f affairs" 17 r agai as said by Si the abiity t trasfr a syste" 18 Here I try t shw that eergy i its edsatic fr is ptetia abstract abur that frs the substace f vaue as hgeeus hua abur the expediture f e uifr aburpwer the expediture f hua brais erves ad usces" eve it is ediated by cpex techica ad rgaisatia achieries If we distiguish betwee the ccrete character f each id f abur ad the expediture f abur pwer c t a these ccrete types f abur as arx did it is as pssibe t distiguish betwee the ccrete characters f each id f eergy fr ad its abstract expediture Fr istace whe differet cvetia uits ad etrics -ues caries BTU Wh -easure eergy it eas that it is separated fr its ateria carrier beig subected t a prcess f abstracti becig a atter f exchage ust as happes fr the prcess f abur abstracti The arx defiiti f abstract abur is i debt t a specific defiiti f eergy -that deivered by earier physicists such as v Heht 19 arx fte stresses that cdities ad their vaue represet r ebdy the sipe expediture f abur pwer et us w  at the residue f the prducts f abur There is thig eft f the i each case but the sae phatie bectivity they are erey cgeaed quatities f hgeeus hua abur ie f hua aburpwer expeded withut regard t the fr f its expediture A these thigs w te us is that hua aburpwer has bee expeded t prduce the hua abur is accuuated i the As crystas f this scia substace which is c t the a they are vaues -cdity vaues (Warewerte)" 2 Agai the abur that frs the substace f vaue is equa hua abur the expediture f idetica hua aburpwer The tta aburpwer f sciety which is aifested i the vaues f the wrd f cdities cuts here as e hgeeus ass f hua aburpwer athugh cpsed f iuerabe idividua uits f aburpwer" 2 Agai If we eave aside the deteriate quaity f prductive activity ad therefre the usefu character f the abur what reais is its quaity f beig a expediture f hua aburpwer Tairig ad weavig athugh they are quaitativey differet prductive activities are bth a prductive expediture f hua brais usces erves hads etc ad i this sese bth hua abur They are erey tw differet frs f the expediture f hua abur pwer f curse hua aburpwer ust itsef have attaied a certai eve f devepet befre it ca be expeded i this r that fr But the vaue f a cdity represets hua abur pure ad sipe the expediture f hua abur i geera… It is the expediture f sipe aburpwer ie f the abur pwer pssessed i his bdiy rgais by every rdiary a  the average withut beig deveped i ay specia way" 2 Fr a biphysica perspective hwever abur is t a priary sefreewig frce Whie abur des reprduce abur des t create r recyce its w eergy Istead the existece ad reprducti f abur ad csequety f capita depeds  a ctiua iput f wetrpy eergy This eergy is derived fr the su either directy (rays heat) r idirecty (wid hydrauics) fr sar radiati stred i the bds f fssi fues (i ca gas) fr gethera fws ad fr cheica bds stred i biass Eergy cat be created by abur r physica capita (achies) It ust istead be recvered fr the eviret 20 The aburfrce f huas is thus reewed y by usig ew eergy The physigica capabiity f abur t geerate vaue depeds  this eergy ust as abur is ecessary t prduce abur eergy is ecessary t extract eergy fr the eviret Ad ust as i a grwth ecy abur ca prduce re tha what is ecessary fr its w reprducti s the eergy extracted fr ature is geeray greater tha the eergy expeded fr its extracti The rati f abur btaied t abur expeded is a critica agitude i ecics it is iperative that it be greater tha e Siiary the surpus crrespdig t the differece betwee eergy btaied ad eergy ivested is et eergy 21 As is we w a crucia factr supprtig risig abur prductivity thrughut tie has bee the icreasig use f eergy 22 23 This idea widey accepted ag ecgica ecists has ever fuy tae  bard by the ecy aistrea A sighty verstated paraphrase is The currecy f the wrd is t the dar it is the ue" 24 e ca ae the cecti betwee risig abur prductivity ad icreasig eergy use a bit re precise by cparig the grwth rates f average abur ad eergy prductivities ad the eergyabur rati 25 The reatiship f therdyaics t wr is expicit Capita is ccered with physica wr because the aburprcess is the trasfrati f aburpwer (eergy iertia) it abur (wr) This is the etera ecessity" f capita ad physics prvides des fr vercig resistaces" ad easurig rds fr eves f crisis 26 Fr Caffetis the prbe is t the ac f eergy r the quatity f wr per se but the prprti f wr geerated by eergy (r abur pwer) the rati betwee the tw Capita is t ust a prduct f wr Capita is the prcess f wr creati the cditi fr trasfrig eergy it wr but eergy is the precditi f this trasfrati Athugh the etera cyce f capitaist reaity is the trasfrati f eergies it wr its prbe is that uess certai quatitative eves are reached the reatiship expressed i the wreergy rati capses ad etrpy icreases

Energy as social relationship
Beyd the therdyaic cpex that it ca represet the wreergy rati is a scia reatiship It is the atrix i which a variety f hua agets ad echaica artefacts are rgaised i rder t perfr practices f prducti t geerate vaue Prducti etais a fr f ature apprpriati hwever It thus beces the scia atrix that geerates frs f wr t prduce cdities ad frs f wr t apprpriate ature at the sae tie the way i which ature is rgaised i rder t be apprpriated Here eergy beces the ateria i betwee the scia ature f hua rgaisati ad the scia ature f ature rgaisati the pwer that ierves the rgaisatia prcesses t apprpriate ature Eergetic reatis bece reatiships f pwer i which prcesses f ature apprpriati are depyed Here eergy ca be see as a histrica deteriati that appies t ccrete scieties ad their rgaisati Frs f eergy (usces wid water ad fue pwered achies) deped  the prevaet histrica scia reatis betwee casses ad des f reprducti Thse reatiships that seect the prevaet eergy fr fr which depeds the tie space cfiguratis ad the geera iveihd f a sciety r a scia syste r a cective de f existece are reatiships f exchage betwee sciety ad ature The use f eergy is sciay rgaised ad techgicay structured It eabes the deivery f atura resurces t scia grups i frs that ca be readiy used (as fd gds ad s ) I shrt the use f eergy aws atura resurces t be sciay cfigured ad acated i ways that ca bth ehace ad iit the evuti f hua scieties 9 27 28 Despite the fact that eergy ca be defied as "the abiity t d wr" atura scietists are rarey ccered abut the type f wr beig ade pssibe ad hw this chages i tie ad space 29 Briefy we ca say that eergy cfiguratis utiatey ai t aw budes f scia activities arrays f scia practices iteded t prduce ad csue cdities The scia essece f eergy eabes us t avid a eergetic deteriis" that is divrced fr its true scia pitica ad ecic basis As ted by atthew Huber whie eergy atters it is iprtat t retai a perspective f diaectica cpexity that ephasises the utuay cstitutive reatis betwee eergy ad sciety" 30 The shift fr prductive systes based  the appicati f hua ad aia usce pwer t systes based  iaiate" r  ivig pwer represets a fudaeta trasfrati i the abur prcess" r i the sciatura etabis 3133 Eergy apprpriati ad csupti is aways ediated by abur ad achiery y the sipest frs f eergy ca be haressed withut ifrastructure Eergy resurces are aways trasfred by a cbiati f techica systes 34 35 ad hua abur that give the a particuar scia cfigurati i rder t ae hua ad techica apparatuses wr t sustai the etabic reprducti f a uber f differet scia subsystes 3638 Eergy has ay ateria carriers hwever -su i ca gas wid biass -that i capitaist sciety bece cdities essetia i the prducti f a ther cdities (icudig abur pwer) Eergyas abur  is itrisicay abivaet it is a usevaue freey prvided by ature ad vita fr a ivig systes (scia ad bigica) but it is as a cdity that shares rues f prducti circuati ad csupti with ther cdities It is at the sae tie a gift fr ature ad a cdity that ca be ctred thrugh techica prcesses accrdig t a purey ecic gic It has bee csidered ipicity eutra uiited ad iexhaustibe devid f ay particuar ipact  the future f sciety subrdiate t this future adaptabe at wi 39 but it is w becig a very sesitive issue due t its effects  ciate chas

The metabolic cleavage
The social metabolism or the resource throughput between physical nature and human society is activated and mobilised by labour. As suggested by Swyngedouw [33] the metabolic process is energised through the fusion of the physical properties and creative capacities of humans with those of nonhumans. It is through labour that raw materials are transformed into use values and are given a specific exchange value due to their capacity to be exchanged. As Marx suggested, without the input of concrete labour (or energy to drive machines to replace concrete labour) there would be no metabolism.
Although labour is changed over time, it remains the main action with which to appropriate and transform nature -energy and raw materials -while producing wealth and value. Firstly, labour is an appropriative action implied in the practices of selection, extraction and relocation of an amount of natural elements, putting them at the disposal of other practices [40]. The array of services freely provided by nature and freely appropriable and usable by society (such as bio-mass or nitrogen) can be counted as pure appropriation. These ecosystem services, now becoming a diffuse concept for attractig atteti t scieta depedece fr ecgica ife supprt systes 41 are e f the cearest exapes f the free etabic exchage betwee sciety ad ature As suggested by arx A thse thigs which abur erey separates fr iediate cecti with their eviret are bects f abur sptaeusy prvided by ature such as fish caught ad separated fr their atura eeet aey water tiber feed i virgi frests ad res extracted fr their veis" 2 By ctrast agricutura aburprcesses are priariy depyed t sustai r reguate the evireta cditis uder which seeds r stc aias grw ad devep There is a trasfrative et i these abur prcesses but the trasfratis are brught abut by aturay give rgaic echaiss t by the appicati f hua abur 40 Fiay we have a ccept f the aburprcess where the ti f a raw ateria udergig a trasfrati t yied a use vaue is cetra This trasfrati is the utce f hua abur which ivves the utiisati f raw aterias ad istruets f abur t achieve its purpse The prcess ivves bth itetia hua activity ad a rage f distict aterias substaces ad ther hua beigs ad cditis Bet describes differet prprtis ad activities perfred by huas ad ature i the prcess f prducti t uderstad hw abur ediates ad bridges sciety ad ature I this view abur is see as a eta histrica prcess f hua adaptati t evireta cditis f scia reprducti The abur capacity t adapt huas t ature befre its distrti due t its subsupti ad abstracti caused by capitais was ceary uderied by arx abur is first f a a prcess betwee a ad ature a prcess by which a thrugh his w actis ediates reguates ad ctrs the etabis betwee hisef ad ature He cfrts the aterias f ature as a frce f ature He sets i ti the atura frces which beg t his w bdy his ars egs head ad hads i rder t apprpriate the aterias f ature i a fr adapted t his w eeds Thrugh this veet he acts up extera ature ad chages it ad i this way he siutaeusy chages his w ature" 2 I the abur prcess therefre a's activity via the istruets f abur effects a aterati i the bect f abur which was iteded fr the utset The prcess is extiguished i the prduct The prduct f the prcess is a usevaue a piece f atura ateria adapted t hua eeds by eas f a chage i its fr abur has bece bud up i its bect abur has bee bectified the bect has bee wred " 2 Uder capitaist cditis abur beces a itetia fr f sciay rgaised activity usuay ivvig the use f techica ts sciece ad expert wedge 42 which ais t trasfr eergy atter ad ivig rgaiss it bects fr scia eeds but as abe at the sae tie t geerate ecic vaue Whie abur is uderstadabe as the trasfrati taig  the wrd the egie f the ccrete ateria cisati f ature it is as a dyaic t fr the abstracti f the wrd As suggested by Rbert ur 42 i ctrast t pre der scieties the prcess f etabis with ature" is  ger cdified by reigius traditis ad traditia graars but is w ediated thrugh the echais f the aret which prgressivey icrprates the etire reatiship t ature thrugh the prcess f abstracti f the cdity fr Capitais etais the trasfrati f the ateria ad sesibe ctet f reprducti it abstract thigs" whse pheea fr is ey idifferet t that ctet Paradxicay the prcess f abstracti f abur reders huas uch re depedet  scia reatis withi the prcess f etabis with ature" tha they were i preder sciety which was characterised i this respect by sa autarchic uits f prducti 42 If etabis is thig but the ctiuus prcess f assebig ad reassebig past ad preset eergy atter ad abur where abur is eergy trasferred t a hua rgais by eas f urishig atter uder capitaist scia reatis the separati f sciety fr ature is accpished but y t subsue it uder ew frs f expitati Whie separati is at wr it aws the frced uity f scietyature cpex ascribed by duaistic ways f thiig t each ter Thus uder the ter prducti f ature" we ca see the diaectica veet betwee separati ad uificati f scietyature cpex 43 44 The subsuig prcess arises as ted by ur fr a bid scia achie fr the abstract utiisati f abur pwer whse tedecy csists f absrbig withi its vacat veet huas ature ad everythig that it tuches directig the ad ater evacuatig the it the ther dead fr f abur ad atter withut addig ay ther quaitative ed This scia achie has t put ateria quaity it ti raw aterias atura frces ad ivig hua abur such quaities hwever d t cstitute a ga r d they prduce ay ed by theseves they are y the eas i the tautgica ad sefreferetia prcess f abstract abur There is therefre a reversa f eas ad eds abur is  ger a eas twards the quaitative ed f the apprpriati f ature but cversey the quaitative ad ateria apprpriati f ature is y a idifferet eas fr the prcess f the chage f fr f abstract abur as a ediitsef 45

Conclusions
I this paper I have tried t shw hw that scia scieces ca hep t uderstad the variati f physica wrd fr ciate chage t shrtage f eergy ad raw aterias The b f scia scietists ca suggest that the scaed ecgy wrd crisis iteracts with the capitaist crisis The chagig cditis f eergy ad raw aterias avaiabiity shape the gba prcess f capita accuuati ad the way i which capita recruits ivig abur t aitai the cditis f accuuati The scia dyaics f the carriers f vaue f the ateria absrbers capturers egagers attractrs f ivig abstract abur are as chagig ad this requires deep ivestigati The dyaics f dead abur as raw aterias eergy ad eas f prducti that are bece cdities eterig the prcess f prducti deserve re atteti because they are crucia fr the prcess f varisati withut ca i ir ctt ad cereas the accuuati prcess eds Csequety variatis i ters f the atura fertiity f capita prfudy shape its heath ad weath Withut biass raw aterias ad eergy withdraw fr earth the capita reprducti wud t exist The crisis  the hri is a crisis t y f the prductivity f the abur recruited by capita but as a crisis f atura fertiity which eas icreasig abur ad eergy t recruit ature it the prcess Wrers ad ature are therefre aies here eve agaist their wis Eergy ad raw aterias are the battegrud  which the surviva f gba capita wi deped ad they are at the sae tie the battegrud ag cpetig capitas -atia ad sectria capitas -t gai access r t cserve resurces As Gedics 46 argued arx t y recgised the iprtace f wcst resurces fr capita accuuati but fet that the scarcity f these resurces at a w price cud threate advaced capitaist cutries particuary if techgica advaces cud t eep pace with a deciig resurce base This eas that the hri up which the gbaised capita is vig is sti that f crisis but as eas that these sciateria fieds  such as eergy ad raw aterias avaiabiity -are becig re crucia tha thers fr a trasitia pitics beyd capitais ay f the strategies eergig t accpish this trasiti are t effective y a few -at east uti w  ai t g beyd the preset syste repacig frs f aieated ad abstract wr ad ature with fewer wr ad eergybased reprducig prcesses