Question

求翻译句子~~

Many big companies, expecting that regulation of greenhouse gases is inevitable, have already moved independently to set up voluntary caps and trading schemes in which companies that aggressively cut their emissions acquire pollution credits they can sell to other companies.
主要是语序理不清，还有voluntary caps 不知怎么翻译比较好。
谢谢了，不要翻译器翻译~

Answer 1

预计温室气体排放规则必不可免（会被制定出来），许多大公司已经独立采取行动确立最高无偿排放限额，制定同那些极力减少他们的排放量以向其他公司出售其限额剩余部分获得污染款项的公司的交易计划。
Many big companies是主语,
expecting that regulation of greenhouse gases is inevitable现在分词作状语,
have already moved independently ，谓语，have moved to do 采取行动做。。。
to set up voluntary（义务性的，无偿的） caps（最高限额） ，
and trading schemes（是set up 的宾语） in which companies that aggressively（极力） cut their emissions acquire pollution credits they can sell to other companies.