Climate Change Caused Mass Extinctions, not Asteroids?

A group of Climate Scientists and Earth Scientists are now proposing a theory that sudden climatic change, not asteroid collision, has been responsible for most of the mas extinction events which have occured throughout history. They are basing this off the partly off the geological record, and what is known to have occurred during the early periods of life on Earth.

Whether right or wrong, it is a fact that mass extinctions have occurred due to climate change. The extinction event at the end of the Permian period is a prime example, where a combination of glacial melt and volcanism is thought to have initiated the climatic change.

So, the question is, are we next? Are we condemned to repeat the past?

Read more about Earth's extinction events here...

More about Climate Change and the Extinction cycle can be found here...