Even less well understood are the cycles of comparative balminess within ice ages, known as interglacials.

对于一个冰川期内被称为间冰期的一段气候相对暖和的时期，我们对其周期尤其缺乏了解。

They moved into the area during warm periods, called interglacial periods.

他们在温暖的时期进入该地区，称为间冰期。

And now we have Tierney's new results on the temperature difference between glacial and interglacial conditions.

现在我们还掌握了蒂尔尼关于冰期和间冰期之间的温差研究的新结果。

But during the warmer interglacial periods, forests bounced back.

但在温暖的间冰期，森林恢复了活力。

Within that, you have cycles of “glacial periods” and “interglacial periods”.

其中，你有“冰期” 和“间冰期” 的循环。

We’re currently in an interglacial period called the Holocene.

我们目前正处于一个称为全新世的间冰期。

And now we have Tierney's new results on the temperature difference between glacial and interglacial conditions.

现在我们有了蒂尔尼关于冰川和间冰期温差的新结果。

Earth has self-regulated within a very narrow range of plus two degrees in a warm interglacial, minus four degrees, deep ice age.

地球在温暖的间冰期零下四度深冰期的非常狭窄的范围内进行了自我调节。

Glacial periods are colder and have a greater ice sheet presence, while the interglacial periods are warmer and more like the Earth is now.

冰川期更冷， 冰盖更大， 而间冰期更暖，更像现在的地球。