Only Trees Can Prevent Forest Fires?

  • Active flame front of the Zaca Fire, the second largest fire on record in California. (U.S. Forest Service photo by John Newman)

New technology might help the US
Forest Service detect fires in remote areas
more quickly. Lester Graham reports:

Transcript

New technology might help the US
Forest Service detect fires in remote areas
more quickly. Lester Graham reports:

A chemical reaction makes batteries generate electricity. There’s a ph difference
between trees and the soil around them. MIT researchers say they can use that
chemical difference to generate a tiny amount of electricity.

Andreas Mershin and his MIT colleagues say it’s just enough power to trickle charge
sensors that read temperature and humidity. Then they send that data to the U.S.
Forest Service so it can determine the risk of fire.

“The advantage comes from the fact you no longer need to be going to very remote
locations and changing batteries all the time.”

The Forest Service will be testing these sensors next spring. They cost about one-tenth
of other sensors that need batteries. So it could mean more sensors in remote
locations. That way the Forest Service could have a better idea of if and when it needs
to put fire equipment near hot, dry areas.

For The Environment Report, this is Lester Graham.

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