Row of gas meters
danger, dangerous, day, dials, factory, gas, industrial, industry, knobs, meters, nobody, oil, outdoor, pipes, risk, risky, row, structure, tanks, union, utility, wall, writing, Henri Silberman
Aquifer, Arrow Sign, Carbon Dioxide, Close-Up, Coal, Connection, Cross Section, Day, Digitally Generated, Direction, Environment, Fossil Fuel, Fuel and Power Generation, Geology, Global Warming