God Active In Our World?
Purpose of this world is not to run it perfectly. Allah wants people to use their free choice to do whatever they want and then make them face consequences in this world or the next. So if man is making an effort to pollute His earth and destroying himself in the process, then Allah makes them taste the consequences of their actions in form of pollution. So that they might learn from their mistakes and revert to the right path or that they may be punished here and shed their sins rather than the case reaching the Day of Judgment where the possible punishment is greater.