Big cities like London, Miami, New York, New Orleans, Mumbai, Cairo, Amsterdam, Tokyo, Shanghai and Manila are threatened as the sea level rises twice as fast as projected a few years ago, this is due to Global warming and polar ice sheets melting that cause sea levels to rise worldwide, leaving people in coastal areas and low-lying islands vulnerable to weather related catastrophes just like what happened in september with the tropical storm “Ondoy” leaving 80 percent of Manila under water.














