The topic of 'Plant life' is closely related to the discussions in the provided podcast episodes, which explore various aspects of the relationship between plant life and environmental issues.

In Episode 439: Fake Invisible Catastrophes | Patrick Moore, the guest discusses how rising CO2 levels can benefit plant growth, challenging the notion of climate catastrophe predictions. This highlights the importance of understanding the complex impacts of environmental changes on plant life over geological history.

Similarly, Episode 390: Rosetta S. Elkin: Troubling mass tree-planting and afforestation delves into the nuances of afforestation and tree-planting projects, emphasizing the need to consider the existing relationships and contexts of diverse plant ecosystems, particularly in drylands.