Sentences with phrase «how ice age glaciers»

Not exact matches

Thousands of marks on the Antarctic seafloor, caused by icebergs which broke free from glaciers more than ten thousand years ago, show how part of the Antarctic Ice Sheet retreated rapidly at the end of the last ice age as it balanced precariously on sloping ground and became unstabIce Sheet retreated rapidly at the end of the last ice age as it balanced precariously on sloping ground and became unstabice age as it balanced precariously on sloping ground and became unstable.

Ask any schoolkid how the first people came to the Americas, and you might get some version of the following: They crossed a spit of land connecting Alaska and Siberia and made their way south between melting glaciers at the end of the last ice age.

The images from this period are not just a window into where the boundaries of glaciers were when the photographs were taken, but a measure of how far they had receded from their maximum expansion at the end of the Little Ice Age.

How, we ask, can a new Ice Age possibly be shaping up when everybody knows that existing glaciers — like those in the Swiss passes and Alaska — are melting?

But neither Science nor the AP mentioned that or explained how the current migrations differ from what's been happening since the last Pleistocene glaciers retreated and the Little Ice Age ended.

Just ask the dinosaurs or remember the ice age and how huge glaciers melting and moving formed our Great Lakes.

Three years ago, University College London professor Chronis Tzedakis had just explained the basic cycles of an ice age to an undergraduate geology class; how the Earth goes through periods of glaciation followed by warmer periods when glaciers melt.