Customers with the Salt River Project are getting more of their power from the sun. One of the largest solar plants in central Arizona just turned on as part of a push by state utilities to use renewable energy.
A probe of a mine waste accident in Colorado that fouled rivers in three states with arsenic, lead and other toxic substances has found further evidence that government workers knew a spill from the gold mine was possible.
The emotion felt from the loss of a loved one or stress caused from a traumatic event can take a toll on heart tissue. Now, Arizona researchers have uncovered specific genes that may make some more susceptible to a broken heart.