blue fire flame furnace hot natural gas advice alert appropriate-behavior appropriate-behaviour avoid be-careful black care careful caution communicating communication concern danger dangerous flammable gas gaseous natural-gas no-ignition outlet potential red risk risks risky safety sign signs stay-clear vapour vapours warned warning warning-sign white below-ground digging digging-dangers pipeline pipes anchor bolt bond brown captive captured chain change climate concept connected crisis detail effect enchained environment floor global greenhouse human in chains industrial inhuman iron limit lock locked metal natural nature resources rust rusty security steel strength strong texture tree trunk tyranny warming weight wood abstract art artwork astral astronomical astronomy backdrop background body cloud cloudy constellation constellations cosmology cosmos creation dark deep design dust empty eternity ether ethereal fantasy field galaxy glow glowing graphic Haze hazy heaven heavenly hydrogen illustration infinity luminosity milky milkyway nebula nebulae nebulosity nebulous night outer reflection refraction render science skies sky space star starfield stars stellar sun suns universe vacuum vector wallpaper way weirdvis weirdvis.creation air burning carbon Cheshire chimney clouds CO2 coal coal-fired condensation contrast cool cooling copy.space copyspace desaturated dioxide electric electricity energy environmental factory ferry fiddlers fired fossil fuel fume fumes generate generating generation generator ghg green grid high house industry landmark large methane national nuclear plant pollution power skyline smog so2 stack stacking station steam sulphur tall three tower vapor water bang big birth class cosmic emission fusion helium luminous nursery radiation spectral starscape universal atmosphere copy crust digital digitally geosphere grphic ice limb lunar moon moons orb orbit orbital orbiting planet planets satellite satellites sci-fi shadow solar sphere surface system terminator topography World worlds

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