Gas lighting explains why a large number of older gas lamps have been converted to electricity. Solar-rechargeable battery-powered gas light controllers can be easily retrofitted into existing gas lamps to keep the lights off during daylight hours and cut energy consumption and green-house gas carbon emissions by 50%. The use of natural gas (methane) for "indoor" lighting is nearly extinct. Besides producing a lot of heat, the combustion of methane tends to release significant amounts of carbon monoxide, a colorless and odorless gas which is more readily absorbed by the blood than oxygen, and can be deadly. Historically, the use of lamps
Lawn mower measured between 86-95 decibels (A-weighted) and from riding lawn mowers between 88 and 96 dB(A); both types exceeded the National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit of 85 dB(A). To reduce the possibility of developing hearing loss and reduce noise pollution, users might consider the use of reel mowers or newer "green" or battery-operated mowers. Appropriate hearing protection such as earplugs or earmuffs will also help reduce the amount of sound that the user hears, which in turn can reduce hearing loss caused by lawnmowers. Lawn mower A lawn mower (also named as mower or lawnmower)