green grass field near mountain under white clouds and blue sky during daytime

Smoke from a sugar cane fire. Most sugar cane farmers today do what is called green harvesting, but up until a couple of decades ago it was common practice to burn the cane before harvesting. This could be the case in this photo, or the fire could have started accidentally. In any event, the farmer will still be able to harvest the cane. A new crop of sugar cane is growing in the foreground.