Is it true there was a huge comet that crash to north America 12900 years ago and that causes the wild fires?

Answer 1

Did a comet or asteroid or large meteor hit the Earth about 12900 years ago? It seems to be true; there were species extinctions about that time that seem to be related to an impact event. There is a special class of rocks called "tektites", which are only found near the sites of nuclear explosions or meteor impacts. The dust of tektites has been found all over North America, in the same layers of rocks that have the dead animals like the wooly mammoth and saber-toothed tigers.

There was also a mini-ice age about that time, called the "Younger Dryas". Some scientists believe (and this is still a fairly controversial theory!) that a small asteroid or a comet struck northern Canada and may have melted enough glacier ice to cause a cold water flood into the Atlantic, which could have triggered the Younger Dryas. (Other scientists looking at the same evidence aren't so sure - or rather, are QUITE sure that it did NOT happen that way.)

A "HUGE" comet? Not so much. A really big comet or asteroid would have caused much MORE damage. The asteroid that was believed to have killed off the dinosaurs was only about 6 miles in diameter, and killed off 75% of all life on Earth. The one that hit Canada must have been much smaller. Some scientists believe that there may have been several smaller objects striking many places across North America.

Answer 2

There is scientific evidence to support the hypothesis of a comet or asteroid impact in North America around 12,900 years ago, known as the Younger Dryas Impact Event. However, the direct connection between the impact and widespread wildfires is uncertain. Wildfires can have multiple causes and are influenced by various factors, so it's challenging to attribute them solely to the impact event. Further research is still being conducted to understand the extent of the impact and its effects on climate and ecosystems.