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
WORX lightweight electric trimmer. Updated iterations of the WORX GT continue to be made and sold by Positec. WORX is also known for selling items like lawn mowers and chainsaws. It offers cordless electric lawn mowers that run exclusively on battery power and have zero carbon emissions. In 2014, WORX released a fully robotic lawn mower (dubbed the "WORX Landroid") that will mow the lawn, returning to a charging station if the battery begins to run low. The Worx JawSaw is a chainsaw with a partially enclosed blade that is designed for safety. Other products include leaf blowers, yard carts, and