china penyebab iklim dunia berubah~??

chiKenliTeL

Is China's soot print changing weather?
Pollution may have triggered B.C. storms

ANNE MCILROY

source: http://www.theglobeandmail.com/s ... 06/TPStory/National

SCIENCE REPORTER

Soot produced by burning coal in China and India isn't just making it harder for local people to breathe, but could be contributing to freakish weather in Canada and the United States, a team of scientists reported yesterday.

The particles of pollution, known as aerosols, are responsible for the brown haze over many Chinese cities. But they drift upward over the Pacific, where they are causing more large clouds to form higher in the atmosphere where it is colder, says Renyi Zhang, an atmospheric scientist at Texas A&M University.

The result has been more intense storms over the ocean, he and his colleagues argue in a paper published yesterday in the Proceedings of the National Academy of Sciences. More intense storms over the Pacific will change the air-flow patterns around the globe, they say.

"And that is going to change meteorology everywhere," Dr. Zhang said in an interview.

This raises the possibility that pollution is contributing to the kind of bizarre weather and storms coastal cities like Vancouver have been experiencing, including the December blow that devastated Stanley Park with hurricane-force winds, Dr. Zhang says.

More research needs to be done to determine what impact these changes in weather pattern will have on the continental United States and Canada, he says.

"You are probably going to have extreme weather, cold winters or warm winters. I just can't say. The impact needs to be further evaluated," he said.

"The bottom line is that if you change the weather in one region you are going to change the weather everywhere and you are going to change the climate, basically."

He and his colleagues reached their conclusions using satellite data collected between 1984 and 2005, as well as climate models. He says he knows it is controversial to suggest that winter storms may in part be man-made.

"First we found the evidence that storms are getting stronger. Second, we believe we have made a link to the pollution in China. People may have different opinions."

*****

A walk in the clouds

What are aerosols? They are particles -- either solid or liquid -- suspended in the atmosphere. Some are natural, like sea salt. Others, like soot, are man-made, produced when coal is burned. They can affect how clouds form, what they look like and how often it rains.

East versus West. The aerosols produced when China and India burn coal are changing the nature of clouds over the Pacific Ocean, which may affect global weather patterns. Scientists don't see anything similar in the Atlantic Ocean, perhaps because North American industry is cleaner.

The puzzle. Clouds remain one of the least understood elements of the climate system. Aerosols in clouds may actually be helping to cool the planet by reflecting more sunlight back into space. So if China and India send less soot into the sky, it might accelerate the pace of global warming. Finding out more. In April, NASA launched CloudSat (right) and CALIPSO, two satellites equipped to investigate the role clouds play in climate. They will work in conjunction with three satellites already in orbit to learn more about how aerosols affect clouds and weather.

chiKenliTeL

korang senyap je apsal? setuju ke tak? ~~

reinloch

Amerika Syarikat jugak seorang pemain besar dlm permainan pemanasan dunia. Kita jugak tidak ketinggalan. Baru-baru ini diterbitkan satu laporan kajian tentang negara-negara yg paling tidak endahkan kesan rumah hijau. Teka siapa yg di bawah sekali?

chiKenliTeL

japon?
indon?
or or vatican city? ~~~

Atomic_Omnikid

cakap banyak plak U.S nie,kalau nak mengurangkan pencemaran..naper tak sign Kyoto Treaty..  

chuckiey

biase la US... kecoh..

chuckiey

Originally posted by reinloch at 9-3-2007 01:04 AM
Amerika Syarikat jugak seorang pemain besar dlm permainan pemanasan dunia. Kita jugak tidak ketinggalan. Baru-baru ini diterbitkan satu laporan kajian tentang negara-negara yg paling tidak endahk ...

US ke? aku rase negara2 europe yg serius ngan isu global warming..

honeybee1802

Originally posted by chuckiey at 10-3-2007 04:39 PM
biase la US... kecoh..

kecoih tul polis dunia nih..sapo yg bukak kilang kat cino tuh?tuh brand2 yg outsource tuh seme buat kat ner?yg dia g bomb iraq dulu tuh naik asap itam tak terjejas ker?

chiKenliTeL

off topic betul la korang :@

honeybee1802

Originally posted by reinloch at 9-3-2007 01:04 AM
Amerika Syarikat jugak seorang pemain besar dlm permainan pemanasan dunia. Kita jugak tidak ketinggalan. Baru-baru ini diterbitkan satu laporan kajian tentang negara-negara yg paling tidak endahk ...

saper?
actually ada dokumentari on discovery channel pasal brown cloud nih..

musang_pulut

US...dia buat takpe...org lain tak boleh....:@

keep88

Currently its not true but then at current emmision rate, China can be world major polluter by the next 40 years.

First time pergi China tahun 2002... time tu ambil gambar semua cantik... last pergi tahun lepas... ambil gambar... kelam... jelebu... China dah tak indah lagi... pencemaran teruk... makin lama makin teruk... tak de ke depa ambil langkah nak kawal pencemaran tu?

chiKenliTeL

sape nak jawab ni ko tulis la bahasa cina ~~~

adlismel

Amerika merupakan penyumbang terbesar jugak dan White House melarang para saintis mereka daripada membicarakan pasal global warming

geForceFX

Boleh di katakan Amerika penyebab global warming. sapa yang banyak reaktor nuklear? sapa yang merintis penyelidikan / meneroka kutub utara untuk sumber asli? sapa yang mempunyai pembakaran hutan yang banyak?

me_ai

US tuding 1 jari kat china, lagi 4 patah balik kat dia,
huhu

weta_studio

china/US masing2 memberikan kesan kepada iklim dunia

BeanDiesel

no. every last one of us causes the climate change. It's just the matter of who does it more, but pretty much everyone is contributing.

BeanDiesel

Originally posted by geForceFX at 6/13/07 01:49 AM
sapa yang banyak reaktor nuklear?  

nuclear power is pretty clean. in fact it's one of the recommended solutions to reducing greenhouse gas emission. it should be better than burning hydrocarbons.