What’s causing the sixth mass extinction? Unlike previous extinction events caused by natural phenomena, the sixth mass extinction is driven by human activity, primarily (though not limited to) the …

In this module, we’ve seen that mass extinctions involve a sharp increase in extinction rates. So how bad is our current situation? Have humans pushed the Earth into its sixth mass extinction? Evidence …

Moreover, we have unleashed a mass extinction event, the sixth in roughly 540 million years, wherein many current life forms could be annihilated or at least committed to extinction by the end of this …

It has been claimed that the Sixth Mass Extinction may be underway, this time caused entirely by humans. Although considerable evidence indicates that there is a biodiversity crisis of increasing …

Apr 1, 2025 · Over the last 500 years, humans have caused the extinction of hundreds of species and now threaten thousands more. Given such patterns, some authors have claimed that Earth is in a …

Mar 11, 2026 · Earth has seen five mass extinctions before now. Here’s what’s happening in the sixth, which species are most at risk, and what’s behind it.

Dec 31, 2025 · To understand whether we are living through a sixth mass extinction, we must first understand what mass extinctions are, how they happened in the past, and what makes the present …

Oct 17, 2025 · Although humans haven’t yet caused anywhere near that 75 percent loss, proponents of a sixth mass extinction argue that within our relatively short presence on Earth, we’ve triggered a …

Dec 10, 2025 · A new University of Arizona study challenges the idea that Earth is undergoing a rapidly accelerating mass extinction. By analyzing 500 years of data across plants and animals, the …

Jun 19, 2015 · We assess, using extremely conservative assumptions, whether human activities are causing a mass extinction. First, we use a recent estimate of a background rate of 2 mammal …