ch ing , ▁and ▁def or est ation . ▁The ▁meeting ▁also ▁caught ▁the ▁attention ▁of ▁the ▁international ▁environmental ist ▁movement , ▁giving ▁the ▁rub ber ▁t app ers ▁a ▁larger ▁audience ▁for ▁their ▁gr iev ances . ▁The ▁group ▁emb rac ed ▁a ▁larger ▁al liance ▁with ▁environmental ism , ▁rather ▁than ▁strict ▁Marx ism , ▁in ▁spite ▁of ▁the ▁b our ge ois ▁associations ▁of ▁the ▁former . ▁Another ▁result ▁of ▁these ▁discuss ions ▁was ▁the ▁co ining ▁of ▁the ▁concept ▁and ▁the ▁term ▁" extract ive ▁res erves ". ▁In ▁November ▁of ▁that ▁year , ▁Ad rian ▁Cow ell , ▁an ▁English ▁film maker , ▁fil med ▁much ▁of ▁the ▁proceed ings ▁of ▁this ▁meeting ▁as ▁part ▁of ▁a ▁document ary ▁he ▁was ▁making ▁about ▁M endes , ▁which ▁a ired ▁in ▁ 1 9 9 0 . ▁ ▁M endes ▁believed ▁that ▁re lying ▁on ▁rub ber ▁t apping ▁alone ▁was ▁not ▁sust ain able , ▁and ▁that ▁the ▁ser ing ue iros ▁needed ▁to ▁develop ▁more ▁hol istic , ▁co oper ative ▁systems ▁that ▁used ▁a ▁variety ▁of ▁forest ▁products , ▁such ▁as ▁n uts , ▁fruit , ▁oil , ▁and ▁fib ers ; ▁and ▁that ▁they ▁needed ▁to ▁focus ▁on ▁building ▁strong ▁communities ▁with ▁quality ▁education ▁for ▁their ▁children . ▁ ▁In ▁March ▁ 1 9 8 7 , ▁the ▁Environment al ▁Def ense ▁Fund ▁and ▁National ▁Wild life ▁Federation ▁fle w ▁M endes ▁to ▁Washington , ▁D . C . ▁in ▁an ▁attempt ▁to ▁conv ince