Home / Environment / Opinions Tools: Save | Print | E-mail | Most Read | Comment
New Zealand scientist warns of Antarctic ice melt, sea rise
Adjust font size:

A New Zealand scientist warned on Thursday of rising sea levels due to Antarctic ice melt.

Tim Naish said new evidence showed that changes to Antarctica's most vulnerable element, the West Antarctic ice sheet, could raise global sea levels by up to 5 metres.

The Director of Victoria University's Antarctic Research Centre will present this new evidence at his inaugural professorial lecture on July 7 at Victoria University.

"Polar ice sheets have grown and collapsed at least 40 times over the past 5 million years, causing major sea-level fluctuations," he said in a media release. "The most recent 'interglacial' has lasted 10,000 years, during which time global sea-level and atmospheric temperatures have remained more or less constant, and human civilisation has flourished."

Professor Naish said much of his research has focused on the international drilling program in the sedimentary layers of the West Antarctic ice sheet.

"Evidence shows that this sheet is expected to melt first, along with Greenland. West Antarctica sits below sea level, so as the ocean warms, the ice sheet also warms. One way to understand this is to use the paeloclimate record to go back to a time when the earth was warmer and to see how West Antarctica behaved," he added.

"We know that greenhouse gases in the atmosphere were slightly above what they are now, and the earth was two to three degrees warmer. When the West Antarctica ice sheet collapsed numerous times,it raised sea levels by up to 10 meters," he said.

"The findings are an opportunity to take a major step forward in our understanding of the Antarctic ice sheet's response to global climate change," he added.

(Xinhua News Agency July 2, 2009)

Tools: Save | Print | E-mail | Most Read Bookmark and Share
Comment
Pet Name
Anonymous

China Archives
Related >>
- One Antarctic ice shelf disappears, another two threatened
- Antarctic ice 'close to melting tipping point'
- Ministers get close look at Antarctic ice threat
- Antarctic ice shelf close to collapse
- Climate scientists predict 1-meter sea level rise by 2100
NGO Events Calendar Tips
- The Eco Design Fair 2009
- Environmental English Training (EET) class
- Hand in hand to protect endangered animals and plants
- Changchun, Mini-marathon Aimed at Protecting Siberian Tiger
- Water Walk by Nature University
More
Archives
World Fights A/H1N1 flu
The pandemic fear grips the world as the virus spreads from Mexico to the US, Europe and as far as China.
Panda Facts
A record 28 panda cubs born via artificial insemination have survived in 2006.
South China Karst
Rich and unique karst landforms located in south China display exceptional natural beauty.
Saving the Tibetan Antelopes
The rare animals survive in the harsh natural environment of the Qinghai-Tibet Plateau.
More
Laws & Regulations
- Forestry Law of the People's Republic of China
- Meteorology Law of the People's Republic of China
- Fire Control Law of the People's Republic of China
- Law on Protecting Against and Mitigating Earthquake Disasters
- Law of the People's Republic of China on Conserving Energy
More
Links:
State Environmental Protection Administration
Ministry of Water Resources
Ministry of Land and Resources
China Environmental Industry Network
Chengdu Giant Panda Research Base