[Simon Green]

There's a great deal of geologic evidence that points to the fact that Earth has suffered major bombardments from asteroids or comets before. It's even theorized that one of those heavy bombardments ended the last ice age.

The Earth did suffer massive bombardments of asteroids and comets in the past, but this happened billions of years ago, whereas the most recent ice started ending roughly 12,000 years ago.

[Windflier]

The Earth did suffer massive bombardments of asteroids and comets in the past, but this happened billions of years ago, whereas the most recent ice started ending roughly 12,000 years ago.

Just last night I happened upon a program that brought to light the recent discovery of a gigantic impact crater on Greenland that may have been responsible for ending the last ice age.

Search on Hiawatha Glacier, or Hiawatha Crater for in-depth information about it.

In a nutshell, the crater is as wide as the city of Paris. The impactor itself is estimated to have been a mile in diameter, and five cubic miles in volume.

"Scientists have discovered a 31km wide impact crater beneath the Hiawatha glacier in Greenland. The discovery, published in Science Advances, was made using airborne radar surveys which unveiled a circular bedrock depression beneath the ice.

The presence of quartz and other grains and features on the ground helped the team confirm the finding – these showed signs of having been subjected to large shock pressures. Analysis of the grains also shows that the impact was most likely made by an iron meteorite more than 1km wide. It would have occurred during the Pleistocene, between about 12,000 and 3m years ago."

Huge crater discovered in Greenland – here’s how the impact may have wiped out the mammoths

[Paul R.]

There's a great deal of geologic evidence that points to the fact that Earth has suffered major bombardments from asteroids or comets before. It's even theorized that one of those heavy bombardments ended the last ice age. (Windflier)

The Earth did suffer massive bombardments of asteroids and comets in the past, but this happened billions of years ago, whereas the most recent ice started ending roughly 12,000 years ago. (Simon Green)

Strictly speaking, the Earth is presently in a many millions of years long Ice Age dominated by periods of extensive glaciation, said glacial periods interrupted regularly but briefly by warmer "interglacial" periods. Until the ice at the Earth's poles melts, and stays that way for at least a minimum of one full cycle (over 100k years), or the poles' ice melts and it can somehow be proven the poles will stay that way for those 100k years (at least) or more, then we are still in an Ice Age. Per this sort of (strict) definition of "Ice Age", Windflier may be correct.