The text boxes below have been placed in a random order. Reorder the paragraphs.
A. A sea level rise of 1 metre would put 118 million people at risk. Scientists believe that there will be a sea level rise of 50 centimetres over the next 40 to 100 years.
B. This amount could increase rapidly if sea levels rose.
C. Scientists estimate that a sea rise of only 50 centimetres would increase the number of people at risk to 92 million.
D. In 1998, 46 million people live in areas at risk of flooding (BBC News, 1997).