> An ice age is a long period of reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth's climate alternates between ice ages and greenhouse periods, during which there are no glaciers on the planet. Earth is currently in the Quaternary glaciation.

( https://en.wikipedia.org/wiki/Ice_age )

> geologists describe the entire time period [from 2.58 million years ago] up to the present as an "ice age"

> Since planet Earth still has ice sheets, geologists consider the Quaternary glaciation to be ongoing, with the Earth now experiencing an interglacial period.

( https://en.wikipedia.org/wiki/Quaternary_glaciation )

Until the polar ice caps have disappeared, we're in an ice age by definition.

There is of course an obvious implication that the naturally-changing climate periodically takes us out of ice ages, too.