Many years ago I worked in Minneapolis. One day I was at lunch with my friend Kamal from New Delhi and Adel from Cairo. We started talking about the weather, and then which city was further south, New Orleans, Cairo or Delhi. We argued a bit, and I don’t remember exactly what side each of us took. It was intense enough that when we got back from the office we found a world map and checked. All were darn near the same latitude. Just had a look at the on line Latitude and Longitude Finder and sure enough, New Orleans: 29.951065, Cairo: 30.044420 and Delhi, India: 28.613939.