Debora dos Santos Avila used to resent firefighters for the death of her five-month-old baby in 2020, when she says he succumbed to smoke inhalation from worst-ever flames in Brazil's Pantanal.
But this year, as the world's largest tropical wetlands sees new record infernos, the bereaved mother is on the frontline fighting back the flames in an area stricken by drought.
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