It is possible that the increase doesn’t mean the are more objects in the sky, but instead reflects people’s shifting relations to technology, superstition, and their surroundings. The Toronto Sun writes:
UFO sightings in Canada are at an all-time high, according to Canadian sky-gazers. The annual report from Ufology Research documented 1,981 UFO sightings in Canada in 2012, more than double 2011′s record 986.
While 40% of Canada’s UFOs were spotted in Ontario, every province save Saskatchewan and P.E.I. saw mysterious lights or objects in the sky.
Among Ufology Research’s theories on the growing phenomenon: “More secret or classified military exercises and overflights are occurring over populated areas; more people are unaware of the nature of conventional or natural objects in the sky; more people are able to report their sightings with easier access to the Internet and portable technology; or even that the downturn in the economy is leading to an increased desire by some people to look skyward for assistance.”
On June 30, 1908, something exploded over an isolated region of Siberia. Theories abound over what that something could have been, with explanations both prosaic (meteorite or comet) and preposterous (UFO crash, one of Tesla’s experiments gone wrong) offered over the years since that mysterious event. While I personally love the idea of a UFO crash, it turns out that scientists working with the Russian Academy of Science may have turned up the first solid proof that a meteorite may have been the actual culprit:
Decide for yourself whether the advocacy at the UFO conference by Gravel, who declared personal bankruptcy a few years ago, could have been influenced by the 
Stephen Bassett’s latest event at the National Press Club has been 
