Of the bacterial isolates found in the Arctic that are able to degrade PCBs, none used compounds such as 2-chlorobiphenyl, 3-chlorobiphenyl, camphor, citronellol, cymene, dehydroabietic acid, limonene, methanol, n-hexadecane, pentachlorophenol, phenol, or pinene as primary growth substrates (Master and Mohn 1998).
In the 20th century, demand for electricity led to the consideration of geothermal power as a generating source. Prince Piero Ginori Conti tested the first geothermal power generator on 4 July 1904, at the same Larderello dry steam field where geothermal acid extraction began. It successfully lit four light bulbs. Later, in 1911, the world's first commercial geothermal power plant was built there.
1 France ranked first for geothermal power use amongst European Union in 2000. 2  China ranked first for geothermal power use amongst Emerging markets in 2000. 3  United Kingdom ranked last for geothermal power use amongst Group of 7 countries (G7) in 2000. Iceland ranked first for geothermal power use amongst NATO countries in 2000. 2  Turkey ranked second for geothermal power use amongst Europe in 2000. 3  Australia ranked third last for geothermal power use amongst Non-religious countries in 2000.