I'm Jeffrey Rosen, president and CEO of the National Constitution Center.

A few years ago, learning about the forgotten meaning of the pursuit of happiness changed my life.

When the founders wrote that famous phrase in the Declaration of Independence,

they meant an ongoing commitment to self-improvement and lifelong learning.

This discovery inspired me to write a book, and in my new podcast, I explore the founder's

lives with the historians who know them best.

Plus, filmmaker Ken Byrne shares his daily practice of self-reflection.

Join me for Pursuit, the Founder's Guide to Happiness.

We're aware enough of the pollution from airplanes that some people pay for carbon credits to offset the effects of air travel. Meanwhile, there's another industry we cannot

avoid patronizing that quietly generates four times the volume of greenhouse gases as aviation.

The clothes we wear and donate and discard every year are estimated to be the source of a full

10% of climate-changing emissions.

From KERA in Dallas, this is think. I'm Chris Boyd.

Once you hear that fact, it's hard to forget, isn't it?

The fashion industry has been making promises about sustainability for a while now.

Some of it is straight up greenwashing, but even seemingly good choices by clothing producers

and clothing consumers come with serious tradeoffs. My guest wants us to understand those pros and

cons and think carefully about what it is we actually need. Layla Petri is Director General of the

Charity Future Earth Lab. Her article for Scientific American is

headlined How to Be a Smarter Fashion Consumer in a World of Overstated Sustainability. Lela,

welcome to think. Thank you so much. What does it even mean for an item of clothing to be sustainable?

It's a great question.

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