Deforestation is responsible for about 10% of global greenhouse gas emissions annually.

Pompeii was buried so quickly by volcanic ash in 79 AD that many victims were preserved mid-action.

The longest cave system in the world is Mammoth Cave in Kentucky.

Some trees can communicate with each other using underground fungal networks.

In 1814, a beer flood in London released thousands of gallons into nearby streets.

Trees in a forest share resources through mycorrhizal networks — mother trees can send carbon to seedlings in shade.

Volcanic ash can damage engines and machinery.

The deepest cave ever explored is Veryovkina Cave in Georgia — descending 2,212 meters below ground.

The Ice Age featured massive glaciers covering large parts of Earth.