The effects of rising sea levels
One of the main effects of global warming is that sea temperatures rise. In addition, water from land-based ice such as glaciers and ice-sheets enters the water causing the sea levels to rise even further.
It is expected that by 2100 sea levels will have risen in most places by around half a metre. In many places, half a metre would result in entire beaches being washed away as well as a significant amount of coastline. For people living in low-lying islands such as Tuvalu, Kiribati or the Maldives, where the highest point is only 2-3 metres above current sea levels. An increase of half a metre could see significant portions of their islands being washed away by erosion or covered in water. Even if they remain above the sea, many island nations will have their supplies of drinking water reduced because seawater will invade their fresh water aquifers.
Even if greenhouse gas emissions could e stabilised by the end of the 21st century, sea levels rise from ocean thermal expansion may only have reached half its eventual level by the year 2500.
Another impact of sea level and temperature levels rising is the change in weather. This includes an increase in areas affected b drought; increased tropical cyclone activity and an increase of extreme high sea levels.