Dehradun, May 10 -- Forest fires do not happen by themselves, except in the rare case of a lightning strike. They are caused by human activity. In Uttarakhand, traditionally, village folk light fires deliberately to get rid of plant litter such as leaves, bark, twigs, pine cones and needles, so that fresh growth is possible for their animals to feed on. Almost all of these are ground fires that, in normal weather, burn themselves out. Other causes are negligent outsiders causing problems by even minor actions like throwing a burning cigarette butt into dry leaves, or picnickers failing to properly put out a fire, and so on. Lately, it turns out that there are really stupid people deliberately lighting fires to make videos of them to gain mo...