Limits can be on (carbon dioxide pollution).Logical formLearned from8 sentences. A country may donate money from selling (pollution permits).Logical formLearned from8 sentences. (Pollution targets) can be for developed countries.Logical formLearned from8 sentences. Pollution may hasten global warming.Logical formLearned from8 sentences. A policy can be for curbing pollution.Logical formLearned from8 sentences. Pollution may remain serious.Logical formLearned from8 sentences. (Pollution emitters) may work on a plan.Logical formLearned from8 sentences. Global warming can be with a (pollution tax).Logical formLearned from8 sentences. An increase of natural disasters can be a result of pollution.Logical formLearned from8 sentences. (Fishing grounds) may undergo pollution.Logical formLearned from8 sentences. Products may be contaminated by kinds of (water pollution).Logical formLearned from8 sentences. A haze may pertain-to pollution.Logical formLearned from8 sentences. A problem can be with (air pollution).Logical formLearned from8 sentences. Concerns can be over pollution.Logical formLearned from8 sentences. (Pollution levels) may increase.Logical formLearned from8 sentences.