OK, Grass fire on Twmbarlwm. I’m gonna say this once. The occasional grass fire is good. Grass and Forest fires are a part of nature, they clear away the dense woodland, clearing the way for new plants, providing food for animals as well as new sources of shelter for said animals. It also cleanses diseased trees and plant life, along with any potentially deadly vegetation and insects.
Its 50/50 whether it was arson that started it or not, but at the same time grass and forest fires have been happening since the first forests of Pangaea, fire clears the way for new life to be reborn from the ashes. Any environment with relatively wet winters and long summers are likely to be fire-prone. All that winter water fuels plant growth in the spring, leaving lots of plant vegetation that has the potential to dry out and become highly flammable during a long hot summer like the one that we’re having right now, what do you think they did in centuries before fire engines? They let it burn itself out, and controlled it as best they could until the rains began… so don’t worry if it dose’t go out when you blow on it, summer’ll be over soon.