The people in Russia's largest city Nizhny Novgorod are suffering a lot, their eyes are becoming red, and losing their breath and they can't see everything. This is the effect of raging wildfires that have spread across Russia this summer, leaving behind the worst smoke clouds in 30 years. Thick, impenetrable blankets have settled over some of Russia's largest cities, cutting off visibility, closing down airports and afflicting millons of people.