For the second time in its history, New York the vibrantness stopped. Submerged by a thick veil of smoke from Canada, suffocating under brutally stale air.

The economic lung of the East Coast of the United States suffers the shock full force. The Empire State Building's Twitter account, mirroring the changing light adornments at its top, sketches a touch of New York humor: "Hey, it's me who usually changes color!" The city, for the rest, laughs yellow.