Publicações

Dezembro 2018, inglês

As U.S. cities struggle to provide adequate infrastructure and affordable housing, many are underutilizing one of their greatest assets: the land on which they sit. Cities generate large increases in the value of land when they change zoning regulations to enable new development or invest in public works projects, but private landowners typically capture the […]

Dezembro 2018, inglês

  For six centuries, a people called the Hohokam inhabited central Arizona. Among their many accomplishments, they created a hydraulic empire of sorts, a spiderlike web of canals intended to deliver water from the Gila and Salt rivers—tributaries of the mighty Colorado—to their agricultural fields. Eventually, the Hohokam abandoned their fields and canals. To this […]

Dezembro 2018, inglês

  Agriculture was the main driver of development along the Colorado River. According to a recent report from the U.S. Geological Survey, 85 percent of water withdrawals went toward irrigation between 1985 and 2010 (Maupin 2018). The fields around Yuma, Arizona, and the Imperial and Palo Verde valleys of California consume more than 4 million […]

Dezembro 2018, inglês

  The desert city of Tucson, Arizona, has an average annual rainfall of just 12 inches. But when the rain comes, it often comes in the form of torrential downpours, causing damaging floods across the city. This is a perhaps ironic challenge for Tucson and the broader Pima County area in which it is situated, […]