Fossil pollen paints a picture of fast-paced human impact.

This week's Discovery Files Video highlights the pollen research of an international team of NSF-funded scientists who analyzed more than 1,100 fossil pollen records to understand how ecosystems have changed since the end of the last ice age--some 18,000 years ago.This is an NSF Multimedia Gallery item.

Source: NSF Multimedia Gallery - June 23, 2021 Category: Science Source Type: video