Some Twitter messages revealed that red gas cans were quickly becoming just as scarce as gasoline itself.

CNN: Long gas lines test patience of storm-struck residents

An hour later and there was the country store, with the one red gas pump in front, there was the turn.

NEWYORKER: History of a Disturbance

Evidence of past explosions is revealed in the image - huge lobes of 20-million-degree Celsius gas (the red loops in the image at approximately the 2 o'clock and 7 o'clock positions) that extend over dozens of light-years on either side of the black hole.

BBC: Black hole 'on a diet'

Natural gas continues to be red hot, despite sustained low prices.

FORBES: Energy Transfer Buys Southern Union: The Beauty Of Nat Gas MLPs

The element to be purified is first incorporated into a chemical that can be turned into a gas. (In this case, the exact compound is still proprietary information.) Then an infra-red laser is shone through the gas.

ECONOMIST: Diamonds

In fact, they get green tomatoes sprayed with ethylene gas to make them turn red.

FORBES: Magazine Article

His eyes were red and swollen and we gave him our gas masks - the least we could do.

BBC: Turkey clashes: Chaos and camaraderie in Istanbul

And that's why my administration will keep cutting red tape and speeding up new oil and gas permits.

BBC: State of the Union: Obama pledges to reignite economy

Gas leaks, and the minuscule push provided by infra-red radiation from the crafts' electricity generators, were ruled out.

ECONOMIST: A space oddity