hourglass time concept. deadline, the end. ending time. global warming awareness. the end of the earth.

hourglass time concept deadline sand flames sandglass timer measurement timekeeping device ancient flow interval cooking maritime navigation religious rituals granular substance rate symbolic value finite flowing historical precise symbolism glass clock hour minute countdown sand-glass antique fire ashes apocalypse world climate change global warming infinity travel hot cold embers explosion fantasy surreal abstract heat isolated winding dirt smoke sandy desert concept time awareness earth