Global Warming -- Update: ancaman percutian global

buttermilk13

betul... maldives dijangkakan hanya akan tenggelam within the next 50-75 years.. but still the rising sea level is alarming to me... what worries me is the fact that the changes in sea level is not as predicted.. some changes are thought to happen over decades, but recent studies show that there are large changes already over months... who knows what will happen tomorrow, who knows that maldives would sink, for example, in just a year from now? and the rise of sea level creates quite a number of negative impacts... the sinkage of island is just one of them.. just because belum ada island yg tenggelam, it doesn't mean that the rising sea level is not worrying... i don't know, maybe im just over paranoid.. hehehe..

jf_pratama

Originally posted by <i>buttermilk13</i> at 21-2-2007 09:44 AM<br />
betul... maldives dijangkakan hanya akan tenggelam within the next 50-75 years.. but still the rising sea level is alarming to me... what worries me is the fact that the changes in sea level is n ...

<br />

Indonesia memperkirakan akan kehilangan hingga 2,000 pulau jika tingi air laut naik akibat pemanasan global.

As kemungkinan, tahun 2050, kita nggak bisa lihat lagi negara-negara kecil seperti Singapura, Nauru, Mauritius, Haiti, Samao etc.

Bagaimana dengan Malaysia ?

[ Last edited by  jf_pratama at 23-2-2007 09:37 PM ]

rudz

Originally posted by buttermilk13 at 21-2-2007 09:44 AM
what worries me is the fact that the changes in sea level is not as predicted.. some changes are thought to happen over decades, but recent studies show that there are large changes already over months... who knows what will happen tomorrow, who knows that maldives would sink, for example, in just a year from now? and the rise of sea level creates quite a number of negative impacts... the sinkage of island is just one of them.. just because belum ada island yg tenggelam, it doesn't mean that the rising sea level is not worrying... i don't know, maybe im just over paranoid..

yup.. betul teman setuju bhawa global warming merupakan satu perkara yang perlu diambil tindakan yang serius...

tapi ada beberapa benda yang kita perlu ingat bila membicarakan pasal global warming nie...
antaranya....
a) kenapa Malaysia sebagai satu negara yang dijangka menerima tempias yg minimum sanggup berjuang padahal negara yang terang-terang merupakan penyebab utama global warming nie masih berseronok (padahal mereka juga antara negara yg bakal menerima kesan yg maksimum)... bagi saya kalau mereka tak peduli... go to hell la kita nak ambik tahu (dah la kerosakan nie majornya dari depa, keuntungan yang berlipat kali ganda... & then la nie kita lak nak terhegeh-hegeh try membetulkannya)... mintak maaf... kalau kita tenggelam/dilanda typhoon/dsbnya... dun worry...depa tenggelam dulu/typhoon depa jauh...jauh lebih dahsyat lagi/dsbnya depa pun lebih extreme lagi

garlic_bread

Originally posted by rudz at 21-2-2007 19:10


yup.. betul teman setuju bhawa global warming merupakan satu perkara yang perlu diambil tindakan yang serius...

tapi ada beberapa benda yang kita perlu ingat bila membicarakan pasal globa ...

i think theres nothing wrong if ppl wud like to express their opinions. mmg negara barat penyebab utama dan bukan kita terhegeh2 nak ambil peduli tapi sekadar nak jadikan satu perbincangan. i think all of us deserve to say anything they want.

rudz

Originally posted by garlic_bread at 27-2-2007 02:32 AM



i think theres nothing wrong if ppl wud like to express their opinions. mmg negara barat penyebab utama dan bukan kita terhegeh2 nak ambil peduli tapi sekadar nak jadikan satu perbincangan. ...

:setuju: ... cuma pada pendapat teman.... disamping kita membincangkan berkenaan global warming nie... kita juga patut memikirkan macamana nak force supaya negara2 besar nie lebih bertanggungjawab terhadap apa yang telah depa lakukan..

redCeri^cet

SYDNEY (AFP) - Prime Minister John Howard warned Wednesday that British climate change guru Nicolas Stern's
environmental solutions would damage Australia's economy.
Howard said ahead of a meeting with Stern scheduled for late Wednesday that he respected the British
economist's contribution to the climate change debate but regarded him as just another expert in the
debate on global warming.

"I'm interested in his views, they make a valuable contribution to the debate but they are the views of
another expert, they should be treated with respect but they shouldn't be treated as holy writ," Howard
told parliament.
Stern warned last year in a landmark report commissioned by the British government that climate change
could bring economic disaster on the scale of the world wars and the 1930s Great Depression unless urgent
action was taken.

He has called on Australia to ratify the Kyoto Protocol and slash greenhouse gas emissions by 30 percent by
2020 during a visit Down Under this week, but Howard expressed reservations about his proposed solutions.
"Some, I believe, if implemented would literally do great damage to the Australian economy," Howard said.
"When it comes to the decisions of this government, uppermost in our minds will be the national interest,
not the views of any one eminent individual."

"I'm not going to commit this government or this country to targets that impose an unfair or disproportionate
burden on this country in the contribution it makes to responding to the challenge of climate change."
Howard said there were areas in which he agreed with Stern, including the use of nuclear power and clean
coal technology to combat climate change.

Stern, a former World Bank chief economist, warned in an interview published Wednesday that Australia
risked a bleak future of increasing droughts, storms, rising sea levels and a dying Great Barrier Reef if
global warming continued.
"You should be going, as a rich country, for 60 percent to 90 percent reductions by 2050," he told the
Sydney Morning Herald.

He admitted this was "a strong ask", as the economy would be two or three times bigger and the demands for
energy would greatly increase.

Howard has frequently expressed scepticism about global warming, but recently softened his stance as an
election looms later this year and opinion polls show widespread public concern about the issue.

But his government remains the only developed economy to join the United States in refusing to ratify the
Kyoto Protocol on greenhouse gas emissions, saying it is unfair because it does not imposes caps on developing
countries.

[ Last edited by  redCeri^cet at 29-3-2007 08:56 AM ]

redCeri^cet

OSLO (Reuters) - One in 10 people in the world, mostly in Asia, live in coastal areas at risk from rising
seas and more powerful storms that may be caused by global warming, an international study showed on
Wednesday.

The researchers urged governments to make billion-dollar policy shifts to encourage more settlements inland
rather than in coastal regions from China to Florida that may suffer ever more storm surges and erosion.
A zone less than 10 meters (33 ft) above sea level "contains some 2 percent of the world's land and 10
percent of its population," according to the study to be published in the April edition of the journal
Environment and Urbanization.

"Settlements in coastal lowlands are especially vulnerable to risks resulting from climate change, yet
these lowlands are densely settled and growing rapidly," the researchers in the United States and Britain
said in the article.
Based on new computer population models and NASA satellite data, it estimated that 634 million people
lived in the coastal zone in 2000, including 360 million in towns and cities.
More than 75 percent were in Asia. Globalization is promoting a shift toward coasts in countries including
China and India by fostering a world trade largely dependent on shipping.

RISING SEAS

U.N. climate experts projected last month that sea levels could gain by 18 to 59 cms (7.1 to 23.2 inches)
by 2100, and keep rising for centuries. They also forecast shifts including more powerful storms, droughts
and heatwaves because of emissions of greenhouse gases, mainly from burning fossil fuels.

Wednesday's report said even people living up to 10 meters above sea level could be vulnerable to cyclones,
subsidence, erosion of river deltas or intrusion of salty sea water onto cropland.
"If you are in that zone you need to take the issues of sea level rise seriously," said Gordon McGranahan,
lead author at the London-based International Institute for the Environment and Development.

Ranked by population, China is most at risk with 143 million people living by the coast, followed by India,
Bangladesh, Vietnam, Indonesia, Japan, Egypt and the United States.

By another measure, small island states will be hardest hit. More than 90 percent of the Maldives, the
Marshall Islands, Tuvalu, the Cayman Islands and the Turk and Caicos Islands are less than 10 meters above
sea level.
"Relatively small shifts in settlement location, out of a coastal plain onto more elevated ground, can make
a major difference," according to the authors, also from the City University of New York and U.S. Columbia
University.

Many countries cannot afford Dutch-style dykes to keep out rising seas but the researchers said governments
could do a lot with better long-term planning and incentives for settling on higher ground.

redCeri^cet

HOUSTON (Reuters) - A Texas-sized piece of the Antarctic ice sheet is thinning, possibly due to global warming, and could
cause the world's oceans to rise significantly, polar ice experts said on Wednesday.
They said "surprisingly rapid changes" were occurring in Antarctica's Amundsen Sea Embayment, which faces the southern
Pacific Ocean, but that more study was needed to know how fast it was melting and how much it could cause the sea level to rise.

The warning came in a joint statement issued at the end of a conference of U.S. and European polar ice experts at the
University of Texas in Austin.
The scientists blamed the melting ice on changing winds around Antarctica that they said were causing warmer waters to flow
beneath ice shelves.

The wind change, they said, appeared to be the result of several factors, including global warming, ozone depletion in the atmosphere
and natural variability.
The thinning in the two-mile-(3.2-km)- thick ice shelf is being observed mostly from satellites, but it is not known how much ice has
been lost because data is difficult to obtain on the remote ice shelves, they said.

Study is focusing on the Amundsen Sea Embayment because it has been melting quickly and holds enough water to raise world sea
levels six meters, or close to 20 feet, the scientists said.
"The place where the biggest change is occurring is the Amundsen Sea Embayment," said Donald Blankenship of the University of Texas
Institute for Geophysics.

"One, it's changing, and two, it can have a big impact," he said in a Webcast with a number of conference participants.
Other parts of the continent also were losing ice, he said, but generally not as quickly.

I think with the recent weather and climate change around the world is enough to scare pple. The greenhouse effect is no longer a myth, but a reality. Polar ice are melting, deserts are raining and floods are submerging lands all over.

redCeri^cet

OSLO (Reuters) - Global warming will damage the hunting cultures of Arctic peoples, thaw polar ice and could release toxic wastes
now trapped in permafrost dumps, a U.N. study showed on Wednesday.

The report, giving regional details of a global study by the U.N. climate panel issued on April 6 in Brussels, also said Arctic fish stocks
and forests could be affected by a rate of warming in the Arctic almost twice the global average.
"Dramatic changes to the lives and livelihoods of Arctic-living communities are being forecast unless urgent action is taken to reduce
greenhouse gases," the U.N. Environment Programme said in a statement.
Rising temperatures were also a threat to creatures such as polar bears and seals which live on the ice.
Among problems on land, a melting of permafrost is "likely to have significant implications for infrastructure including houses, buildings,
roads, railways and pipelines," it said.
"The impervious nature of ice-rich permafrost has been relied upon as a design element in landfill and contaminant holding facilities,"
a chapter of the report says.

A thaw of the permafrost could bring "severe contamination" and "large cleanup costs, even for relatively small spills," it said.
The former Soviet Union dumped waste across the Arctic.
The report says that the area of permafrost in the northern hemisphere is expected to shrink in mid-century by around 20 to 35
per cent.

"The costs of relocating subsiding towns and villages could be high. The price tag for relocating a village like Kivalina in Alaska has been
estimated to be $54 million," it said.
The report also said that annually averaged sea ice in the Arctic could shrink by between 22 and 33 percent by 2100.
Northern forests might grow faster but would be exposed to fires and tree-killing insects such as spruce bark beetle that are normally
kept in check by the winter frosts.

The Arctic is warming faster than the rest of the globe, partly because dark ground and water, once exposed, soaks up ever more heat
than reflective snow and ice.
It said there could be some benefits from warming, for shipping and access to oil and gas. Ships with ice-strengthened hulls could sail
a northern sea route from the Atlantic to the Pacific past Russia for 125 days a year by 2050, it said.
Some species of fish would suffer from warming, such as Arctic char and arctic grayling. But a retreat of Arctic ice could benefit some
species, such as cod and herring.

nazurah

aku br lepas cakap psl global warming ni dgn kawan aku... dia baru blk dr south pole. tp aku x take note plak apa yg dia kata...seingat aku...dia kata ada bahagian di sebelah semenanjung south pole tu yg dah cair...exact location...aku lupa tanya.

tp semua ni katanya tak terjangka...saintis meramalkan ia mungkin mengambil masa lama utk berlaku tp kesannya kita dah rasakan skang. korang tentu ingat citer DAY AFTER TOMORROW kan... tatutnyaaa

dexa

October 20, 2008 21:56 PM           

Climate Change 'Happening Faster' Than Predicted

LONDON, Oct 20 (Bernama) -- Climate change is occurring far faster than the predictions of the world's best scientists, a new report has warned.

Quoting to the report, the Press Trust of India (PTI) quoted a leading British newspaper, that extreme weather events will happen more frequently unless action is taken on a global scale to combat global warming.

The report from the World Wide Fund for Nature (WWF) has also predicted massive crops failures and the collapse of eco-systems on both land and sea.

The agency has clearly pointed out that global warming could result in rapid and abrupt climate change rather than the gradual changes forecast by the Intergovernmental Panel on Climate Change (IPCC).

The report, titled 'Climate Change: Faster, Stronger, Sooner', WWF claims, has updated all the scientific data and concluded that global warming is accelerating far beyond the IPCC's forecasts.

As an example, it says that the first "tipping point" may have already been reached in the Arctic, where sea ice is disappearing up to 30 years ahead of IPCC predictions and may be gone completely within five years -- something that hasn't occurred for a million years.

"Climate change is a major challenge to the future of mankind and the environment, and this sobering overview highlights just how critical it is that the EU Environment Ministers commit to a strong climate and energy package, in order to ensure a low carbon future," WWF-UK's Head of Climate Change Dr Keith Allott said.

-- BERNAMA

****************************************************************

interesting... saya baru aje buat discussion tadi
factors influence the climate   as well as how climate changes
our lives -  but then  speaking of global warming ni -
memang abrupt climate change and it effects the eco system
as well -

amazed

Cuaca panas halang zaman ais kembali


PELEPASAN gas karbon dioksida menyebabkan proses
semula jadi planet untuk kembali sejuk seperti keadaan
zaman purba tidak berjaya.



EDINBURGH - Perubahan iklim bumi yang kian panas akhir-akhir ini akibat pembebasan gas karbon dioksida tidak menyebabkan planet itu kembali kepada zaman air batu.

Penemuan menarik itu dilaporkan jurnal Nature sekali gus menafikan kajian model geologi terdahulu yang menggambarkan bumi menjadi ais menjelang 10,000 tahun lagi.

Prof. Thomas Crowley yang memajukan model terbaru cuaca itu di Universiti Edinburgh mendedahkan, pelepasan CO2 global bertambah 1.5 bahagian dalam sejuta sejak 100,000 tahun lalu.

"Namun proses semula jadi 100,000 kali perlahan daripada sepatutnya dan menyaksikan harapan bumi untuk sejuk semula seperti zaman ais purba adalah mustahil," katanya. - Agensi

naen

Global warming causing more tropical storms: NASA

LOS ANGELES (AFP) – Global warming is increasing the frequency of extremely high clouds in the Earth's tropics that cause severe storms and rainfall, according to a NASA study released Friday.

The space agency's Jet Propulsion Laboratory (JPL) said a study by its scientists "found a strong correlation between the frequency of these clouds and seasonal variations in the average sea surface temperature of the tropical oceans."

"For every degree Centigrade (1.8 degrees Fahrenheit) increase in average ocean surface temperature, the team observed a 45-percent increase in the frequency of the very high clouds," according to the study, recently published in Geophysical Research Letters.

"At the present rate of global warming of 0.13 degrees Celsius (0.23 degrees Fahrenheit) per decade, the team inferred the frequency of these storms can be expected to increase by six percent per decade."

JPL Senior Research Scientist Hartmut Aumann headed the study on five years of data from the Atmospheric Infrared Sounder (AIRS) on NASA's Aqua spacecraft, an instrument that observes climate variations.

The link between global warming and the frequency and intensity of severe storms has long been a source of speculation for climate modelers, noted the Pasadena, California-based JPL.


+ mungkin next year (2009) akan ada lebih banyak ribut topan akan melanda ..
mungkin lagik teruk dpd nargis? hanna? gustav? perghhh ..

dexa

Himalaya makin panas




Penduduk-penduduk kampung Himalaya berdepan dengan ancaman disebabkan pemanasan global yang kritikal.


SAMBIL menikmati pemandangan indah di sebuah lembah, Langtang di banjaran Himalaya, Nepal, tiba-tiba kenangan silam menerjah kotak fikiran Rinjin Dorje Lama. Kenangan itu membawanya mengimbau saat dia masih kecil sekitar tahun 1960-an.

"Kenangan semasa kanak-kanak tidak mungkin dapat dilupakan. Ia adalah satu kenangan yang sentiasa bersama saya," katanya sambil menuding jari ke arah glasier Lirung, sebuah puncak yang dahulunya dikelilingi salji.

"Saya selalu bermain di sungai ais (glasier) dan ia sangat dekat dengan biara. Tetapi kini, glasier itu berada kira-kira dua kilometer jaraknya dari biara," katanya.

Dia menambah: "Saya tak faham kenapa sungai ais boleh hilang. Tetapi saya diberitahu kehilangannya disebabkan oleh pemanasan global," tambah Lama, 57, yang dilihat jauh lebih tua daripada usia sebenarnya.

Lama juga berkata, keadaan sungguh membimbangkan, tetapi apa yang boleh mereka lakukan.

"Kami tidak menyumbang kepada pemanasan global tetapi kesannya dirasai oleh semua pihak. Saya takut sekiranya kami tidak akan merasai ais dan salji untuk tempoh 15 tahun akan datang disebabkan masalah ini," katanya.

Langtang dihuni kira-kira 700 penduduk dengan 4,000 ekor yak.

Menurut kajian jangka panjang Jabatan Hidrologi Nepal, suhu di beberapa lokasi di banjaran Himalaya boleh mencecah sekitar 0.06 darjah Celsius.



BAHAYA bakal mengancam kawasan pergunungan di Nepal
akibat perubahan iklim yang terlampau kesan daripada pemanasan global.

Namun, para saintis kanan dari Pertubuhan Bangsa-Bangsa Bersatu (PBB) memberitahu, purata suhu di banjaran itu kini jauh lebih tinggi berbanding tahun sebelumnya dengan suhu permukaan meningkat sehingga 0.74 darjah Celsius sejak 100 tahun lalu.

"Sekarang saya rasa matahari semakin panas. Kalau dulu, pada musim sejuk salji akan turun sehingga dua meter kedalaman dan kekal berminggu-minggu, tetapi selepas berlakunya pemanasan global, kami dapati salji yang turun hanya sedikit.

Kami tidak dapat menduga cuaca sekarang tetapi tahu bahawa bahaya bakal mengancam kawasan pergunungan di Nepal akibat perubahan iklim yang terlampau," kata Lama lagi.

Selepas ais melebur, tasik-tasik mula terhasil. Apabila tekanan menjadi terlalu genting, tasik-tasik yang terbentuk bakal mengundang bahaya. Peleburan ais bakal menghasilkan berjuta-juta padu tan air dan boleh menghanyutkan harta benda, hasil pertanian dan manusia.

Para pengkaji di Pusat Antarabangsa Pembangunan Gunung Bersepadu (ICIMOD) memberitahu, sebanyak lima kali banjir telah dicatatkan di tasik glasier utama sejak tahun 1970 dan sekurang-kurangnya dua kali di Tibet serta sekali di Bhutan.

ICIMOD juga memberi amaran bahawa perubahan iklim yang serius akan berlaku pada Ogos ini.

Menurutnya, kajian menunjukkan kebanyakan masalah berpunca daripada kilang-kilang yang mengeluarkan asap-asap kotor dan bahan-bahan api yang terbakar.

Sementara itu, Ang Tsering Sherpa yang membesar di Nepal di sebelah rantau Everest telah lama menyaksikan perkembangan sebuah tasik glasier yang membimbangkan.

"Sebuah kolam kecil muncul berhampiran glasier Imja pada tahun 1962," kata Sherpa, pemilik sebuah syarikat ekspedisi dan merentasi Himalaya di Kathmandu.

Pada tahun lalu, sebuah pasukan penyelidikan dari Jepun memerhatikan tasik yang terbentuk itu boleh membesar sehingga 1.7 kilometer panjang, 900 meter luas dan 92 meter dalam.

"Jika ais di tasik tersebut mencair , ia akan menjadi seperti tsunami," katanya lagi.

Bayangkan bencana yang terpaksa penduduk kampung hadapi apabila limpahan air dari sebuah tasik beku yang cair membanjiri kampung. Tentunya bencana itu akan menyebabkan kehilangan nyawa, harta dan haiwan ternakan.

Sementara itu, Dana Dunia Hidupan Liar (WWF) menyatakan terdapat kira-kira 2,000 tasik beku terbentuk dan 20 daripadanya bakal mengancam nyawa penduduk.

Pada masa yang sama, penduduk di kawasan banjaran Himalaya dimaklumkan bahawa apa yang berlaku kini adalah berpunca daripada kesan pemanasan global.

Salji dan ais Himalaya adalah satu rizab air tawar terbesar yang menjadi sumber kepada sembilan sungai utama di Asia, termasuk Indus, Gangga dan sungai-sungai lain.

"Dalam jangka masa panjang, ia akan menjadi masalah besar kepada penduduk Asia jika kandungan air dari glasier berkurangan.

"Penduduk kampung begitu bergantung kepada sumber air tersebut," kata pegawai perubahan iklimWWF, Sandeep Chamling Rai. - AFP

naen

Global warming 'irreversible' for next 1000 years: study


WASHINGTON (AFP)

gorgonz

hmmmmm... contra sket...

cuba baca buku karya Michael Crichton... State of Fear...



w/pun fiksyen...tp based on scitific facts, notes, graphs... etc etc...
buat kita terpikir.... beto ke global warming ni....

    quote dr buku ni....   global warming is only a theory...

cuba la baca..... tak rugi....

-----------------
summary
Michael Crichton's latest book State of Fear has characters debating data (complete with graphs and footnotes) and concepts that cast doubt on the validity of global warming evidence.
"State of Fear" is about a self-important NGO hyping the science of the global warming to further the ends of evil eco-terrorists. The inevitable conclusion of the book is that global warming is a non-problem

further arguments: http://www.realclimate.org/index.php?p=74

dexa

Is extreme weather a sign of global warming?


The horrific bushfires in southern Australia last week came during a fierce heatwave when the temperature soared to 48.8C (119.8F) at Hopetoun, Victoria

amazed

Icebergs in Vincennes Bay in the Australian Antarctic Territory in January
2008. It seems the dire warnings about the oncoming devastation wrought
by global warming were not dire enough, a top climate scientist warned Saturday.

amazed

Climate change even worse than predicted: expert


CHICAGO (AFP)