Tackle a wall of flames moving faster than a truck? That's what these volunteers do

Extreme heat across southern Alberta is drying out crops and threatening a wave of intense and dangerous grassfires. Here are some of the volunteers who are constantly on alert.

Tackle a wall of flames moving faster than a truck? That's what these volunteers do
A group of men and women in helmets and coveralls gather around a speaker.

Extreme heat across southern Alberta is drying out crops and threatening a wave of intense and dangerous grassfires. Here are some of the volunteers who are constantly on alert.