This week: a German research team built a water contamination test that runs on a smartphone and gives you an answer in under a minute. A Cornell professor has a gardening trick that involves water, a paper towel, and one night. A Bristol startup figured out what to do with festival urine!

Arielle and Karissa also talk about the psychology of why you keep falling for the same type, Earth Day turning 56, and the free home reset that's apparently all about the "invisible layer."

And for the first time, an Optimist Daily's Emissary shout-out goes out! Therese highlights Emily Oakley and Michael Appel of Three Springs Farm in Oklahoma, two farmers who've spent over two decades working on food, land, and community.

If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to podcast@optimistdaily.com.

Transcript link: https://www.optimistdaily.com/?p=1422061

Want to be part of the Optimism Movement? Become an Emissary.

Subscribe to our FREE Daily Newsletter and follow us on Instagram, X, and Blue Sky.

The Optimist Daily is a project of the World Business Academy.

Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://

In honor of National Pet Day, Arielle sits down with Erica Psaltis, founder of senior dog rescue Silver Linings Rescue Ranch in Bend, Oregon. They talk about what actually goes into running a rescue like this: the intake process, the misconceptions people have about older dogs, the losses, and how Erica keeps showing up even when things get overwhelming.

It's a story about dogs most people don't consider. About loving something with a short timeline and recognizing beauty and value in what's fleeting.

This is the perfect episode to listen to while taking a hike or a stroll or snuggling up with your pets!

Support Silver Linings Rescue Ranch:

• Website: silverliningsrescueranch.org
• Follow and share on Instagram and Facebook

Transcript link: https://www.optimistdaily.com/?p=1422021

If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to: podcast@optimistdaily.com.

Want to be part of the Optimism Movement? Become an Emissary.

Subscribe to our FREE Daily Newsletter and follow us on Instagram, X, and Blue Sky.

The Optimist Daily is a project of the World Business Academy.

Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://

Sound credits:

• Theme and all original music by Marvin Lanes
• "Stable Noises- Birds and Horses Neighing.wav" by GoodListener (freesound.org/s/322443) — License: Attribution 4.0
• "angelic aaaahh two-part harmony.wav" by Wolfsinger (freesound.org/s/25759) — License: Attribution 4.0
• "Likes, Thumbs Up" by LilMati (freesound.org/s/714569) — License: Creative Commons 0
• "Pomeranian Small Dog Barking.mp3" by yunjish (freesound.org/s/608732) — License: Creative Commons 0

This week starts with casino Easter eggs and a prom-posal, because apparently Good Friday is full of surprises.

Then Arielle and Karissa get into the actual news: a teenager built a working microplastic filter in her garage, Mexico's monarch butterflies had their best winter in nearly a decade, and a $375 million jury verdict just put Meta on notice. There's also a California law that stops punishing college students for asking for help after an overdose, a roundup of Easter traditions that gets genuinely weird, and some fungi that show up in wildfire burn scars before anything else does.

If you have questions, comments, feedback, suggestions, or just want to say hi, send a message to: podcast@optimistdaily.com.

Transcript link: https://www.optimistdaily.com/?p=1421975

Want to be part of the Optimism Movement? Become an Emissary.

Subscribe to our FREE Daily Newsletter and follow us on Instagram, X, and Blue Sky.

The Optimist Daily is a project of the World Business Academy.

Donate link: https://www.optimistdaily.com/donate-to-support-the-optimist-daily/?gift=Y%20http://