Trails can be left behind planes in all areas around the globe and not just in the northern hemisphere. Variables include the aircraft and the prevailing conditions at altitude. What is happening is that a combustion byproduct (either of the jet or piston engine), water, is condensing. Maybe even freezing. After all, atmospheric conditions up high usually include very cold air. When we "see our breath" on a cold day, we are seeing the water vapor in our breath cooling and condensing.
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∙ 16y agono it is in the Northern Hemisphere
the government is honeslty trying to posion us.. its called a chem trail.
The heat of the engines, especially jets, leaves a trail of white condensation in the cold atmosphere.
On odd years is the Northern trail and on even years is the Southern years
The Northern Trail - 1921 was released on: USA: 3 July 1921
Northern Ontario Resource Trail was created on 1966-12-06.
key west trail
April was a good month to leave on the Oregon Trail.
NO snakes leave a 'slime trail' ! Only molluscs such as slugs and snails leave a slime trail !
A pheromone scent trail.
You leave a trail - everything you do online can be traced back to the computer you're using.
Hit the trail: to start a journey or go for a hike. Blaze a trail: to make a new path or create a new approach. Leave a trail: to leave a visible path or evidence behind. Follow the trail: to track or pursue someone or something.