This is a visualization of a World Bank stat. The colors become more red when life expectancy drops from one year to the next and they turn more white when life expectancy rises from one year to the next. The height of the country represents it's life expectancy in years. The ravages of war and AIDS are painfully apparent. If you look closely you can see Rwanda's life expectancy drop to 23 years during their genocide.
Note: No data was available for the Democratic Republic of the Congo / Zaire / blank hole at the center of the map.