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3/29/2007

Major cities warned against sea-level rise

Skywatch-Media Special Report
Disaster Preparadness
Sea-level rise 'under-estimated'

For the first time, a scientific study has identified the world's low-lying coastal areas that are vulnerable to global warming and sea-level rise, and urged major cities from New York to Tokyo to wake up to the risk of being swamped by flooding and intense storms if nothing is done. 'Migration away from the zone at risk will be necessary, but costly and hard to implement.' In all, 634 million people live within such areas - defined as less than 10m above sea level - and that number is growing. Of the more than 180 countries with populations in the low-elevation coastal zone, about 70 percent have urban areas of more than five million people that extend into it, including: Tokyo; New York; Mumbai, India; Shanghai, China; Jakarta, Indonesia; and Dhaka, Bangladesh. Asia is particularly vulnerable. The five countries with the largest total population living in threatened coastal areas are China, India, Bangladesh, Vietnam and Indonesia. Coastlines already are showing the impact of sea-level rise and global warming and it is expected to worsen. An IPCC report is expected to say that about 100 million people each year could be flooded by rising seas by 2080. By the time the location of the coastal settlements at the most risk becomes evident, "most of the easier options for shifting settlement patterns, and modifying them so that they are better adapted to the risks of climate change, will have been foreclosed." Many such areas have long been vulnerable to natural disasters such as flooding and tropical storms, but climate change is likely to increase that risk. In North America, the two biggest cities, Los Angeles and New York, are at risk of a combination of sea-level rise and storms with waters rising "up to several meters deep." By 2090, under a worst-case scenario, megafloods that normally would hit North America once every 100 years "could occur as frequently as every three - four years."


SOUTH AFRICA. Many photos of the monster wave damage showing the aftermath.[This is the kind of coastal damage the article above is warning about.]
View Aftermath Images



Sea Level Simulator

This animated image shows the repercussions of immense sea level rise on the european, african and asain continents.




Click the image above to view sequencial ocean depths on coastal areas.

Distributed by Skywatch-Media



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