When Science Fails: What We Learned About Nature’s Limits

Climate change, pollinators, flowering seasons, phenology, urban ecology, biodiversity, native plants, and bee populations are revealing how quickly nature is changing.

My guest today is Dr. Paul CaraDonna, a conservation scientist whose work focuses on one of the most fascinating questions in ecology:

What happens when nature’s timing begins to change?

In the Rocky Mountains, flowers are blooming earlier. Growing seasons are getting longer. Bees and other pollinators are adjusting their activity. But not every species is changing at the same speed.

And that matters.

Plants and pollinators have spent thousands of years building relationships around timing.

A flower needs to bloom when its pollinator is active.

A bee needs food when it emerges.

When climate change begins shifting that schedule, those relationships can change, weaken, disappear, or sometimes adapt in ways we did not expect.

Paul and I talk about the idea of phenological mismatch, the surprising flexibility built into ecological systems, and an extraordinary case in Arizona where researchers arrived expecting flowers and bees only to find virtually nothing.

Instead of ending the research, that failure opened an entirely new set of questions.

We also explore what it is actually like to study bumblebees in the Rocky Mountains, why some species behave like specialized race cars while others are more like all-terrain vehicles, and how bees are adapting to cities like Chicago.

And there is a lesson here that goes beyond ecology.

Nature is far more adaptable than we sometimes give it credit for.

But adaptability has limits.

Understanding those limits may be one of the most important things we can do as our climate continues to change.

Toward the end of our conversation, Paul also gives some simple advice for anyone who wants to support biodiversity at home.

You do not have to rebuild an entire ecosystem.

Sometimes a few plants with real ecological value can make a difference.

And maybe most importantly, spend time observing.

Curiosity is often where conservation begins.