I guessed :

News mail.ru again wiped off: "Scientists: replacing the topols with other trees will save the city from puha". I also want to be a scientist.

That scientists were touched by officials who were touched by allergists, but the worker can not cut all the topol immediately and plant other trees - expensive! Find us the cheaper options, scientists! Therefore, scientists are spending government money on useless research only to convince a hard-legged chinush that cutting a topol is the cheapest option available. As a result, money from the city budget is spent on replacing trees plus research by scientists, or simply on research, because it is not enough to cut the topols.