Over the period, smog due to increasing number of vehicles and industries has becoming a major concern for the environment and health of people living in urbanities. Addressing the issue, Hungarian designer Peter Horvath has popped up a creative solution, the “Biolamp,” which converts carbon-dioxide into fuel to power the street lamps, other than providing a clean and healthy environment for the city dwellers. Containing a liquid, alga mixed with water, which transforms CO2 into oxygen, the sustainable streetlamp also includes a pump to suck the smog, from the top, and circulate the liquid in the spiral system. During the daytime, the streetlamp uses sunlight, CO2 and water to transform the alga into biomass that can be converted into fuel to power the lamps as well. As soon as the alga liquid is saturated with carbon-dioxide, the biomass is driven to the closest filler station through underground tubes, where it is transformed into biofuel to power eco cars, and refuel street lamps with alga thereafter.