What does a metre sea level rise actually mean? This is how we visualised some of the data confusion image

Posted by David McCandless, Monday 22 February 2010 14.33 GMT, guardian.co.uk Another day, another set of bewildering climate figures. Today, key climate scientists withdrew their predictions. of a metre sea-level rise by 2100. Other scientists meanwhile claimed the 1m figure was way too conservative anyway. They predict anything up to 2m sea level rises over the next century. It’s difficult to keep track of all this shifting research. And, in the midst of this reporting, there is one consistent but bewildering assumption made of us: that we understand what a one metre sea level rise means in reality. A “1 metre sea level rise” is in the same domain as “1 ton of carbon” or “£1 billion”. That is, it’s meaningless without context or some link to our everyday lives. So, in this diagram, I’ve tried to sum up all the current research on sea level rises. What will happen, when it will happen, and where the sea water is coming from. You can see the data and sources in this spreadsheet. In an effort to make the information easier to relate to, I’ve also thrown in which key cities around the world will be most affected by the rises. I hope it helps. If you’ve come across any other data or sources, please let me know. I’ve taken the lowest, most conservative figures I could find. Predictions vary widely. This is because there are a slew of different climate change prediction scenarios. Each one foresees a particular range of sea level rises, depending on ice-melts, temperature rises and many other factors. It’s not an exact science. The key sources are Sea Level Rise Explorer , studies from the Potsdam Institute (PDF) and reports from the IPCC Report (2001 – the most conservative one). …

Information is Beautiful: When Sea Levels Attack via reader Sadee