| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Tiny Fish: Big Deal, Wild Olympics, Biofuel from Cornfield Residue, Fire Ants |
PBS
|
30 | |
| S04E02 | Owyhee Canyonlands, Sustainable Alaskan Village, Algae Power, Climbing Fish |
PBS
|
30 | |
| S04E03 | Wilderness Anniversary, Arkansas Oil Pipeline, Fungi Fuel |
PBS
|
30 | |
| S04E04 | Seamount of Life. Arctic Traffic, Altamaha River Pollution, Diatoms and Climate Change |
PBS
|
30 | |
| S04E05 | Herring Lift, Biofuel Start-ups, Fabulous Filtering Fungi, Prickly Pear Cactus for Clean Water |
PBS
|
30 |
No artwork of this type.
No artwork of this type.
No artwork of this type.