Smokestacks Emitting Smoke — Orange

1600 × 978

Factory smokestacks emitting pollution

1300 × 1012

Factory smoke pollution

1280 × 1024

Factory at sunset

1600 × 1000

Factory smoke at dusk

1600 × 1000

Industrial Plant in Winter — Gray

3521 × 2347

Industrial pollution in a village

1440 × 900

Foggy sunrise over mountains

1200 × 750

Industrial skyline with smoke

1680 × 1050

Factory at night with smoke

1200 × 900

Industrial complex with river and marsh

2288 × 1712

Airplane Wing over Clouds — Blue

1200 × 960