Geography
How Glacial Retreat Creates New Ecosystems
Quick fact
In Glacier Bay, Alaska, glaciers have retreated over 100 km since the 18th century, revealing a remarkable chronosequence of ecosystems from bare rock to temperate rainforest.
Why this is interesting
Imagine a landscape stripped to raw bedrock by ice—then watch as life slowly reclaims it. How does a barren, icy wasteland transform into a thriving ecosystem?