Danger to the world?

As I continue my research on global warming, many people think that in future water will end up submerging all of New York in water! This could happen because in the last 100 years, the sea level has risen 6-8 inches. This is because the earth’s overall temperature has increased half a degree Celsius over the past 100 years and it has melted many ice caps. If all the ice caps melted now, the sea level will rise 230 feet. This is according to the National Snow and Ice Data Center This is why many people are worried about global warming and all its affects.