The Brief

PHOENIX - The Tres Rios Wetlands is undergoing a prescribed burn on Tuesday morning, sending lots of smoke into the air.

What we know:

The wetland is located near 91st Avenue and Baseline Road in Phoenix. The burn will end around 4 p.m. Oct. 7.

According to the U.S. Forest Service, these kinds of burns are important.

"Did you know fire can be good for people and the land? After many years of fire exclusion, an ecosystem that needs periodic fire becomes unhealthy. Trees are stressed by overcrowding; fire-dependent species disappear; and flammable fuels build up and become hazardous. The right fire at the right place at the right time," the agency said .

Dig deeper:

So, what is the Tres Rios Wetlands?

The city of Phoenix says , "The lush and scenic Tres Ri

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