Slavery in Russia in the Khanate of Khiva from the 17th to the 19th century. At the beginning of the 21st century Chechens and Ingush kept Russian captives as slaves or in slave-like conditions in the mountains of the northern Caucasus. Recent (2009–2012) reports have identified human trafficking and slavery of Uzbekistan and Kazakhstan nationals in contemporary Russian society. Slavery in Russia Slavery in Russia was officially abolished in 1723, when Peter the Great converted household slaves to serfs. In 2013, Global Slavery Index reported that unsatisfactory living conditions of migrant workers who for a number of reasons can not obtain work permits
Coal in Russia Irkutsk and South Yakutsk basins. The two major coal producers in Russia are Rosugol and Donugol. Over two-thirds of coal produced in Russia is used domestically. Russia is self-sufficient in coal, and consumed 223 million tons of coal in 2009. The percentage of coal in Russian power generation has been declining since 1990, when it was 20.7%, due to increasing gas consumption as well as increasing nuclear and hydroelectric energy production. Currently only 14.4% of Russia's power is produced from coal. Coal in Russia Coal is one of the largest sources of energy in Russia, accounting for 14.4% of the