Acrylic on wood, ready to hang.
Signed on the front.
Contrails - condensed lines of cloud left in the wake of high-flying aircraft engines. Hot air mixing with cold. Characteristically disappear a minute or two after appearing.
Chemtrails - condensed lines of X-vapor dumped from high and low flying aircraft separate from the engine block. Often start and finish over populated urban areas. Linger in slow dissipating lines for up to and over an hour. Dumped at low altitude, triggering X-reaction (genetic/cellular) in populations below. Had your daily dose of aluminium people? Look up, smile. Breathe deeply next time you see those odd lines in the sky because the clouds just aren't right.