San Diego's economy is somewhat defense and military based. High technology and medical technology have become areas of great potential in the economy.
Being next to the ocean and desert, San Diego has a warm climate all year. The weather fluctuates only a little from season to season.
San Diego's air quality is better than many cities of comparable size.
It may have started as a sleepy mission town, but the city of San Diego now is home to
more than 2.7 million people. Making San Diego a rich, vibrant, cultural center.
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San Diego is near a quake fault and gets small tremors every now and then. Scientists have said that San Diego is long overdue for a major earthquake.
San Diego is the sixth-largest city in the US. It is the southern-most major metropolitan area in California.