Compare this to the natural background rate of one extinction per million species per year, and you can see why scientists refer to it as a crisis unparalleled in human history. The current mass ...

Our impact on the planet has caused the Sixth Mass Extinction. Here are the main reasons why we are causing the most recent ...

approaching a mass extinction. Nowadays human activity is impacting the environment on a global scale and on an ever-accelerating rate. According to the report, only a quarter of Earth's surface ...

[Read: Earth is not in the midst of a sixth mass extinction] This skepticism of human influence is also getting in the way of ...

Instead, it is chiefly the activities of an ever-growing human population ... in the face of the current mass extinction. But thousands of others, many never known to science, are likely to ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific ...

Instead, it is chiefly the activities of an ever-growing human population ... in the face of the current mass extinction. But thousands of others, many never known to science, are likely to ...

This story appears in the October 2019 issue of National Geographic magazine. Some scientists contend that we’re heading toward what would be the sixth mass extinction in the history of life on ...

The world has experienced many periods of mass extinction caused by a variety of ... linked almost exclusively to the activities of human beings. Some experts have estimated that up to half ...

and some say that this could put us on track for a new mass extinction - which would include our own human race. "We're changing the path of evolution," says Dr Gerardo Ceballos, an ecologist at ...

These are called mass extinctions and they've been caused by things like asteroids, giant volcanic eruptions and ice ages. Some scientists think human activity might be causing a mass extinction now.