Iran

Iran — page 3
IRAN Climate Iran is an arid or dry land with little rain although it is more humid along the northern and southern coasts In the Zagros and Alborz mountains the winters are bitterly cold with temperatures often below 32ºF 0ºC and frequent snow on the higher slopes By high summer the snow has melted leaving the bare rock peaks exposed In central Iran summer temperatures can rise from the high 90s to 120ºF high 30s and 40s ºC Much of the country receives less than 10 inches 25 cm of rain each year falling to less than 4 inches 10 cm in the deserts In the hotter parts of Iran the streams and rivers are often seasonal 8 CASE STUDY IRAN’S SHRINKING LAKE Over 87 mi 140 km long and 40 mi 55 km wide Lake Urmia is Iran’s largest lake Although filled by snowmelt each spring Urmia has been shrinking for years because of evaporation in the summer heat Owing to the high salt levels in its water fish cannot live in the lake but humans have collected the salt and used it as a medicine for centuries A causeway across Urmia’s narrowest point was opened in 2008 and depend on snowmelt and spring rains from the mountains In summer these riverbeds often lie dry for months Iran’s largest permanent rivers such as the Karun the Karkeh and the Zayeandeh mostly flow through the western and southern regions of the country The wettest parts of Iran lie along the Caspian shore in the north Farm laborers separate grain from the chaff using traditional methods that have changed little in thousands of years Scenes like this have become rarer as farming in Iran has become more mechanized