Rio de janeiro Pollution
Pollution in Rio de janeiro is severe and athletes that will compete in next year Olympics is at Risk. There health is at risk if the government don't do anything about it. If they want to showcase there city the government should improve the whole city.
If this don't happen they will be like the sochi Olympics wherein many infrastructure is unfinished and don't look good.
Brazil accept the Olympics and therefore accept all the responsibility around it. The cost and everything.