Wal-Mart, Light Rail to Revitalize Metrocenter Mall

What was once the largest mall in Arizona is now facing increased competition from retail "power centers," online shopping, and reduced consumer spending due to the economy.

Now, a plan is underway to revitalize Metrocenter Mall and the surrounding area.

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Tesla Motors Adds Supercharger Locations in Arizona

It wasn't very long ago that the idea of owning a pure electric car was a crazy dream. There were no mass-market manufacturers of electric vehicles and no infrastructure in place to support them. In just 11 years, Tesla Motors has changed all that.

The upstart company from California has become one of the biggest success stories not only in the automotive world, but in the business world. Backed by PayPal co-founder and billionaire Elon Musk, Tesla Motors has overcome many hurdles previously thought to be impossible.

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The Mystery of Phoenix Northgate

You might think that North Phoenix, with its suburban tract housing and its shopping centers and strip malls, might not be a very interesting place. But within the confines of suburbia lies a mystery that remains unsolved to this day.

I'm talking about a place called Phoenix Northgate - a massive chunk of vacant land located near 19th Avenue and Bell Road, directly across the street from Turf Paradise.

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Why Is Phoenix So Hot?

Phoenix is famous for its scorching hot temperatures during the summer. Between June and August, the daily high temperatures can be over 110°F (43°C) for several days in a row.

So, why is Phoenix so hot? There are a variety of natural and man-made factors.

NATURAL FACTORS

1. No Sea Breeze
This might seem kind of obvious, but I'm going to cover it anyway. Many of America's major cities are coastal cities. San Francisco, Los Angeles, Seattle, NYC, Miami, and Chicago are all located near large bodies of water. The effect of wind blowing across the water provides a year-round cooling effect called a Sea Breeze. Because Phoenix is not located near any large bodies of water, the city does not receive this natural cooling effect.

2. Low Elevation
Another factor in a city's temperature is its elevation. Phoenix is about 1,080' above sea level. Compare that with cities like Las Vegas (elev. 2,030'), Salt Lake City (elev. 4,327'), Denver (elev. 5280'), or Albuquerque (5,312'). Lower elevations typically have higher temperatures because there is more air above them, which increases the atmospheric pressure.

3. Close to the Equator
You may recall from high school geography class that the world is divided into a system of vertical and horizontal lines called Latitude and Longitude.

Phoenix is relatively close to the Equator, at just 33°N Latitude. Las Vegas is at 36°N, Salt Lake City is at 40°N, Chicago is at 41°N and Minneapolis is at 45°N. (Keep in mind, the North Pole is at 90°N).

Near the Equator, Earth's atmosphere is very thin. This allows more of the sun's energy to be absorbed by the earth. Higher elevations are more protected against the atmosphere and thus have cooler temperatures.

4. Down in the Valley
Phoenix is located in the Salt River Valley - a low spot surrounded by mountains. These mountains block the wind and rain that would ordinarily be transported by a current of fast-moving air called the sub-tropical Jet Stream. Because of our natural barriers, Phoenix has over 300 days of sunshine per year.                                          

MAN-MADE FACTORS

 
5. The Heat Island Effect
Some of the factors in Phoenix's notoriously hot temperatures are due to man-made causes. One of these is the heat island effect.

Much of the city is paved with concrete and asphalt for roads, parking lots, driveways, and sidewalks. Pavement stores and retains the heat from the sun. What this means is that after the sun goes down, overnight low temperatures do not drop much as they would in an unpaved area.

So there you have it: five reasons why Phoenix is such a hot city during the summer.

Also, please remember that this article covers the climate of Phoenix. Other cities in Arizona including Flagstaff and Show Low have all four seasons.

ValTrans: An Idea Ahead of Its Time

Phoenix is a large metropolitan city with a population of about 4.1 million people. When you compare Phoenix to similar cities like Boston (4.6 million people) and Atlanta (5.5 million people), they have something we do not: a large-scale mass-transit system.

There is a reason for this: Phoenix is a much larger city geographically than these other cities. The greater Boston area is about 4,676 square miles while Atlanta is about 8,376 square miles. Phoenix, by comparison, is a staggering 16,573 square miles - more than double the size of Atlanta with a million fewer residents!

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