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Acid rain is rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH).Most water, including drinking water, has a neutral pH that exists between 6.5 and 8.5, but acid rain has a pH level lower than this and ranges from 4–5 on average.
The previous record for Sindh and Pakistan, and for all of Asia, had been 52.8 °C (127.0 °F), reached on 12 June 1919. [3] [4] In the winters, frost is common. Central Sindh's temperatures are generally lower than those of upper Sindh but higher than those of lower Sindh. Dry hot days and cool nights are typical during the summer.
The 2011 Sindh floods began during the monsoon season in mid-August 2011, resulting from heavy monsoon rains in Sindh, Eastern Balochistan, and Southern Punjab. [13] The floods have caused considerable damage; an estimated 270 civilians have been killed, with 5.3 million people and 1.2 million homes affected. [ 14 ]
In 2003, Sindh province was badly affected when above normal monsoon rainfall caused flooding in the province; urban flooding also hit Karachi where two days of rainfall of 284.5 millimetres (11.20 in) created havoc in the city, while Thatta District was the worst hit where 404 millimetres (15.9 in) rainfall caused flash floods in the district ...
The highest rainfall to be recorded was in Jacobabad, with a record 481 millimetres (18.9 in) in just 7 days, and 441 millimetres (17.4 in) in just 36 hours. In Larkana, 239 millimetres (9.4 in) of rainfall was recorded; 206 millimetres (8.1 in) of rainfall was recorded in Sukkur. Larkana was the worst affected by heavy rainfall.
The Thar Desert in the province of Sindh is separated in the south from the salt flats of the Rann of Kachchh (Kutch) by a boundary that was first delineated in 1923–1924. After independence and dissolution of Empire, Independent and free Pakistan contested the southern boundary of Sindh, and a succession of border incidents resulted.
The Acid Rain Retirement Fund (A.R.R.F) is an all-volunteer, non-profit environmental educational organization, incorporated in Maine, dedicated to reducing pollution by purchasing and "retiring" marketable sulfur dioxide emissions allowances issued by the U.S. Environmental Protection Agency’s Acid Rain Program. A.R.R.F. was created in 1995 ...
There is a slight decrease in humidity, which hovers between 70 and 80%, and an increase in temperatures. Rain in this month is inconsistent. During the monsoon of 2005 no rain occurred in the city raising the fears of drought but from 9 September till 11 September heavy rainfall lashed the city about 80 millimetres (3.1 in) rainfall was recorded.