Dein Suchergebnis zum Thema: Erosion

Humans have been altering tropical forests for at least 45,000 years | Max-Planck-Gesellschaft

https://www.mpg.de/11420915/humans-have-been-altering-tropical-forests

The first review of the global impact of humans on tropical forests in the ancient past shows that humans have been altering these environments for at least 45,000 years. This counters the view that tropical forests were pristine natural environments prior to modern agriculture and industrialization.
central Africa about 2,400 years ago, significant soil erosion

Nemesis is a myth | Max-Planck-Gesellschaft

https://www.mpg.de/4372308/nemesis-is-a-myth?page=2

Danger looms from out of space: asteroids and comets are a threat to our planet. The history of Earth has always been punctuated by cosmic catastrophes. Several studies have claimed to have found periodic variations, with the probability of giant impacts increasing and decreasing in a regular pattern. Now a new analysis by Coryn Bailer-Jones from the Max Planck Institute for Astronomy (MPIA) shows those simple periodic patterns to be statistical artifacts. His results indicate either that the Earth is as likely to suffer a major impact now as it was in the past, or that there has been a slight increase impact rate events over the past 250 million years
than 400 million years, which are less affected by erosion