Natural gas tens of millions of structures that use the fuel, the individual risk of using natural gas is very low. Natural gas heating systems may cause carbon monoxide poisoning if unvented or poorly vented. In 2011, natural gas furnaces, space heaters, water heaters and stoves were blamed for 11 carbon monoxide deaths in the US. Another 22 deaths were attributed to appliances running on liquified petroleum gas, and 17 deaths on gas of unspecified type. Improvements in natural gas furnace designs have greatly reduced CO poisoning concerns. Detectors are also available that warn of carbon monoxide and/or explosive gas (methane, propane,
Natural gas in Bolivia natural gas industry, President Evo Morales dramatically took over and occupied installations by using military force on May 1, 2005. Even though he stated that expropriations would not occur, the short period of six months given to renegotiate contracts put great pressure on the main foreign companies exploring for of natural gas in Bolivia. The state-owned Brazilian company Petrobrás, was among the most affected, since it was one of Bolivia’s largest foreign investors and controlled 14% of the country’s natural gas reserves, which in consequence created large concerns in the Brazilian government. Ultimately, negotiations took place and no further hostilities