Volcanic eruptions can produce lightning within ash clouds.

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

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

Glacier retreat is causing 'peak water' — rivers fed by glaciers will eventually have less water as glaciers disappear.

Green infrastructure — parks, urban forests, wetlands — provides billions in ecosystem services.

Lightning does strike the same place twice — tall structures like the Empire State Building are struck hundreds of times per year.

Trees in a drought will 'talk' to each other through chemical signals in the soil, triggering defensive responses in nearby trees.

The Pantanal in South America is the world's largest tropical wetland area, covering up to 195,000 square kilometers.

Rafflesia arnoldii produces the world's largest individual flower — up to 1 meter across and weighing 10 kg.