air architecture brick bricks chimney duct emission emissions exhaust pipe high industrial industry nature pollute pollution production red sky smog smoke smokeshaft tall trees exhaust pipe industrial smokestack smokestack clean concept global green greenhouse house life living World base bulb cap cost current double-contact-bayonet-base edison-screw-base electric-current electricity embedded-wires filament gas-discharge globe glow glowing incandescence incandescent-light instant-start lamp light light-source lighting luminosity luminous luminous-efficacy sleeve standard stem traditional ultraviolet ultraviolet-emissions ultraviolet-light ultraviolet-radiation aware better change climate family natural people pure recycle reduction warming