In what ways have Russians positively affected their environment?

Explanation/

Among Russia's most important environmental problems: Water pollution is the most serious concern. Less than half of Russia's population has access to safe drinking water. ... Air quality is almost as poor as water quality, with over 200 cities often exceeding Russian pollution limits, and is likely to worsen.

the roman republic began to expand when rome fought the punic wars and defeated carthage. the punic wars refer to the series of 3 wars fought among rome and carthage, before it ended in carthage's defeat.