Debu-debu di Kota

http://www.scientificamerican.com/article.cfm?id=how-do-volcanoes-affect-w

ringkasnya, debu-debu belerang dan lain-lain unsur dibebaskan ke udara apabila gunung berapi meletus.

kehadiran debu-debu ini secara berleluasa dan melampau di ruang angkasa boleh, dengan izin Allah, menyebabkan beberapa kesan seperti kurangnya cahaya matahari yang sampai ke bumi.

dengan kurangnya cahaya matahari yang menyinari bumi, suhu bumi akan menjadi lebih sejuk. kurangnya cahaya matahari juga menyebabkan tumbuhan kurang berfotosintesis, lalu menyebabkan mereka melemah dan akhirnya menyebabkan kematian tumbuh-tumbuhan.

kematian tumbuh-tumbuhan dan tanaman pula menyebabkan kekurangan makanan bagi haiwan, beburung dan serangga, lalu mereka juga kebuluran dan banyak yang mati.

kematian tumbuh-tumbuhan dan haiwan ini menyebabkan manusia kekurangan makanan, lalu menghadapi kebuluran lalu banyak yang meninggalkan dunia ini.

unsur kimia yang berserakan di udara juga boleh, dengan izin Allah, menyebabkan hujan asid yang dapat membunuh tumbuhan dan haiwan, seterusnya menyebabkan pengurangan sumber makanan bagi manusia, lalu menyebabkan manusia kebuluran dan akhirnya menyebabkan kematian ramai manusia. manusia juga dapat meninggalkan dunia ini akibat ketoksikan daripada hujan asid ini.

kesan-kesan ini dapat dilihat melalui letusan Laki, Mount St.Helen, El Chichon, Krakatau, Pinatubo, Tambora dan lain-lain.

ada orang membuat telahan bahawa Allah Taala akan meletuskan gunung berapi Yellowstone, yang kononnya pernah suatu ketika dulu membuat tiga superletusan dalam pengetahuan manusia masa kini.
http://en.wikipedia.org/wiki/Yellowstone_Caldera

adakah Yellowstone akan meletus pada 2012?

saya tidak tahu.

Iceland Volcanic Ash Drifts Toward U.K.

Europe: Update: Volcanic ash forces closure of airspace in Greenland; halts flights in Norway
23-May-2011 09:10:35 AM (GMT) REYKJAVIK, May 23, 2011 (AFP) - A portion of the airspace over Denmark's autonomous territory Greenland has been closed due to ash from an erupting Icelandic volcano, Danish air traffic control officials said Monday.

Naviair spokeswoman Helle Kogsbell told AFP authorities had closed some of Greenland airspace late Sunday "due to the spread of ash from the Icelandic volcano to the east coast of Greenland."

She said the airspace would remain shut until at least 1200 GMT Monday.

"The space, up to 6,000 metres (nearly four miles) of altitude, from north of Kulusuk to ... to Constable Point in the East, remains closed to air traffic," Kogsbell said.

Naviair is responsible for the airspace over Greenland only up to 6,000 metres, while Canada and Iceland have control over airspace above that.

Denmark was the first country besides Iceland to close any airspace after the Grimsvoetn volcano began erupting late Saturday, but European aviation authorities have been closely monitoring the giant column of ash, amid fears it like last year's eruption could wreak havoc on air travel across the continent.

European safety experts have warned that the ash could reach Scotland by Tuesday before sweeping across Britain to hit France and Spain two days later.

Norwegian airport operator Avinor meanwhile said Monday it planned to halt flights between mainland Norway and the country's Arctic archipelago of Svalbard Monday.

"The cloud of ash will reach the waters separating continental Norway and Svalbard," Avinor spokesman Ove Narvesen told AFP.

"There will therefor not be any flights to or from Svalbard today," he added.

Narvesen, who pointed out the move only affects two scheduled flights, also cautioned that more of Norway might be affected going forward.

"There is a small risk that western Norway will be affected but it is too early to say," he said.

Europe: Update: Scottish airline cancels flights as ash clouds arrive
23-May-2011 03:57:08 PM (GMT) LONDON (AP) - Scottish regional airline Loganair has canceled most of its flights for Tuesday morning as a high-density cloud of ash from an Icelandic volcano approaches the country.

Glasgow-based Loganair says it will ground 36 flights between 6 a.m. and 1 p.m. Flights between Scottish islands will be unaffected.

Authorities say there are no plans to close air space. The cloud from the Grimsvotn (GREEMSH-votn) volcano is expected to reach Scotland and Ireland Monday night.

Last year the eruption of another volcano in Iceland led to the grounding of thousands of flights. Airlines lost millions of dollars and millions of travelers were stranded.

Netherlands, U.K.: Volcano ash prompts cancellation of six KLM flights
23-May-2011 08:35:21 PM (GMT) THE HAGUE, May 23, 2011 (AFP) - Dutch airline KLM has suspended six flights to northern Britain and Scotland due to the shifting plume of ash from an erupting volcano in Iceland, the company said late Monday.

"I can confirm that six flights have been suspended until 11:00 am (0900 GMT) tomorrow (Tuesday) Amsterdam time," spokeswoman Ellen van Ginkel told AFP.

"The flights were to Aberdeen, Glasgow, Edinburgh in Scotland and Newcastle in northern England," she added.

Two days into its most powerful eruption in over a century, monitors said ash particles from the Grimsvoetn volcano had been scattered across much of Iceland, forcing the country to close its airspace Sunday.