Are Diwali fireworks to blame for Delhi smog?
Do fireworks let off during Diwali celebrations really cause that much pollution?
from BBC News - World https://ift.tt/2Oz5yPp
Do fireworks let off during Diwali celebrations really cause that much pollution?
from BBC News - World https://ift.tt/2Oz5yPp
Do fireworks let off during Diwali celebrations really cause that much pollution?