Waqtiyadii hore, wax-soo-saarka shaaha adduunka (marka laga reebo shaaha dhirta) ayaa wax ka badan labanlaabmay, taas oo sidoo kale keentay heerka koritaanka.mishiinada beerta shaahaiyobacda shaahawax soo saarka. Heerka kobaca wax soo saarka shaaha madow wuu ka sarreeyaa shaaha cagaaran. Inta badan kobacani wuxuu ka yimid wadamada Aasiya, taas oo ay ugu wacan tahay kor u kaca isticmaalka ee wadamada wax soo saarka. Inkasta oo tani ay tahay war wanaagsan, Ian Gibbs, oo ah guddoomiyaha golaha caalamiga ah ee shaaha, ayaa aaminsan in iyada oo wax soo saarku kor u kacay, dhoofinta ayaa weli ah mid siman.

Si kastaba ha ahaatee, qorayaashu waxay ku doodayaan in arrin muhiim ah oo gacan ka geysaneysa hoos u dhaca isticmaalka shaaha madow, iyo mid aan laga hadlin mid ka mid ah fadhiyada shirarka shaaha ee Waqooyiga Ameerika, waa kor u kaca iibka shaaha dhirta. Isticmaalayaasha da'da yar waxay qadariyaan sifooyinka ay shaaha miraha, shaaha udgoon iyo shaaha dhadhanka leh ay keenaan shaaha casriga ah. Intii lagu jiray masiibada Covid-19, iibinta shaaha, gaar ahaan kuwa "kor u qaada difaaca," "ka yareeya walbahaarka," iyo "caawinta nasashada iyo xasilloonida," ayaa kor u kacday iyadoo macaamiishu ay si firfircoon u raadsanayaan oo ay u iibsanayaan shaaha waxtar leh, caafimaadka kor u qaadaya. Dhibaatadu waxay tahay in qaar badan oo ka mid ah "shaaha", gaar ahaan kuwa yareeya walbahaarka iyo dejinta "shaaha", kuma jiraan caleemaha shaaha dhabta ah. Haddaba iyada oo shirkadaha cilmi-baadhista suuqyada caalamiga ahi ay ku celceliyaan kobaca isticmaalka shaaha adduunka (shauhu waa cabbitaannada labaad ee ugu badan ee la isticmaalo adduunka ka dib biyaha), kobaca ayaa u muuqda inuu yahay shaaha dhirta, kuwaas oo aan u wanaagsanayn soosaarka shaaha madow ama cagaarka.

Intaa waxaa dheer, McDowall wuxuu sharaxay in heerka farsamada eegooye shaaha iyo jar jarteysi xawli ah ayuu u kordhayaa, laakiin makaanaynta waxaa inta badan loo isticmaalaa in lagu soo saaro shaaha tayadoodu hooseyso, farsamada farsamadu waxay keentaa shaqo la'aanta shaqaalaha shaaha. Soo saarayaasha waaweyni waxay u badan tahay inay sii wadi doonaan inay ballaariyaan makaanaynta, halka kuwa yar yar aanay awoodin kharashka badan ee makaanaynta, soo saarayaasha waa la tuujiyaa, taas oo keeni doonta inay ka tagaan shaaha si ay u helaan dalag faa'iido leh sida avocados, eucalyptus, iwm.