A fallen tree in Pasadena injured eight children and sparked news reports and claims linking tree collapse to the current drought. But does the data support that claim? Sam Brock investigates. (Published Tuesday, Aug. 4, 2015).
A video of Robert Booty using a Tree Radar device that uses ground penetrating radar to locate the roots of trees. Every two tenths of an inch it shoots down a concentrated radar beam into the ground to identify where the root is located and how deep it is.