Reports by the Congressional Research Service from 2008 discuss emerging policy issues regarding carbon dioxide pipelines for carbon sequestration, network needs and cost uncertainties regarding pipelines for carbon dioxide control, and jurisdictional issues in regulating carbon dioxide sequestration pipelines.
Total numbers of speakers is high: over 40 million Farsi speakers (about 60% of Iran's population); over 14 million Dari Persian speakers in Afghanistan (50% of the population according to CIA World FactBook & Britannica); and about 2 million Dari Persian speakers in Pakistan.
Iran is the homeland of ethnic-Persians. Persians (including Persian sub-groups) and Persian-speakers (other ethnic groups that have adopted Persian language) can also be found in Tajikistan, Afghanistan, Bahrain, Kuwait, UAE, Iraq, Georgia, Turkey, Armenia, Oman, the Caucasus, Azerbaijan and Uzbekistan.ersian has historically referred to some Iranian languages, however what today is referred to as the Persian language is part of the Western group of the Iranian languages branch of the Indo-European language family.