Everyone has been talking about global warming lately, and for good reason: average temperatures are on the rise and climatic conditions are increasingly unstable.
But did you know that technically we are still in an ice age ?
In fact, over the last two million years, the earth has experienced a period characterized by cooler temperatures and the extension of the polar ice caps toward the equator. During an ice age, glacial periods alternate with interglacials, when temperatures rise somewhat. We are currently in such an interglacial phase that started about 10,000 years ago. |