They make significant efforts to cope with the destructive effects of disorderly population movements and industrial activities, particularly environmental pollution, which generates a large part of our most serious problems.
它们展开巨大的努力，以处理没有秩序的人口移徙和工业活动、尤其是环境污染的破坏性影响，这些影响造成了我们大部分最严重的问题。