Student Founders Turn Glass Waste Into Coastal Defense

What Happens to Millions of Glass Bottles in New Orleans?

When New Orleans stopped recycling glass in 2019, millions of bottles destined for landfills ended up in a flood-vulnerable city — until two students fixed the problem themselves.

It's Saturday night in New Orleans. The bars are packed. The music's loud. And the glass bottles are piling up in black trash bags headed straight to the landfill. Nobody thinks about it. It's just what happens when a city built on celebration meets a city built on landfill-as-destiny.

But two Tulane University students — Franziska Trautmann and Max Steitz — started thinking about it. And thinking about it some more. And eventually, they decided the city's answer ("Sorry, we don't recycle glass") wasn't actually final.

Whatever Glass Half Full is today — a multi-million-pound-per-year recycling operation, a coastal restoration partner, a $6.5 million-funded regional player — it started with a question that shouldn't have been that hard to answer: What the hell are we doing with all these bottles?

How Did Two Tulane Students Start Glass Half Full?

Franziska Trautmann and Max Steitz started Glass Half Full in January 2020 with a backyard operation, a GoFundMe campaign, and a simple mission: recycle the glass their city wouldn't.

In January 2020, Trautmann and Steitz realized New Orleans had no glass recycling infrastructure. The city stopped collecting it. Recycling centers wouldn't take it. And every bottle they and their friends used was destined for a landfill in a region that's literally drowning.

Most people would've shrugged and ordered another drink. Trautmann and Steitz went to the backyard.

Their first operation was exactly what it sounds like: manual glass crushing in a residential space, a GoFundMe campaign, and friends loading bottles into borrowed trucks. It was a proof of concept built on stubbornness and the kind of efficiency you get when you're motivated by something you can actually see.

That early scrappiness mattered. They weren't waiting for permission. They weren't writing a business plan first. They saw a problem, they built a solution, and they got other people to help. The scale was tiny. The principle was everything.

How Did Glass Half Full Grow From Backyard to Warehouse?

Glass Half Full moved into a 40,000 square-foot Gentilly warehouse, installed hammer mills and conveyors, and launched residential drop-off and commercial pickup services across New Orleans.

What started in a backyard quickly needed walls. Glass Half Full moved into a 40,000 square-foot facility in Gentilly, New Orleans, installing hammer mills and conveyors to process glass into sand and cullet at scale. The early days hit a milestone: one million pounds of glass diverted from landfills.

That's when the real business model took shape. They launched free residential drop-off locations and a paid pickup subscription service for restaurants and bars — basically monetizing what the city wouldn't. Added French Quarter recycling windows for the tourist traffic. Built the Glassroots nonprofit arm to handle education and advocacy work.

If you live in New Orleans and you cared about recycling glass, suddenly you had actual options. If you owned a bar, you had a revenue stream and a sustainability story. If you generated glass waste, you had a place to send it that wasn't the landfill.

The operation grew fast. By 2024, Glass Half Full had processed millions of pounds of glass. But that raw volume only mattered because of what happened next.

How Does Glass Recycling Help Rebuild Louisiana's Coast?

Louisiana loses roughly one football field of coastline every 100 minutes. That's not a metaphor. That's measured erosion. And when you're losing land that fast, sand becomes strategic infrastructure.

Glass Half Full discovered that their processed sand could do more than fill construction projects. The company partnered with the Coalition to Restore Coastal Louisiana to test whether glass sand could rebuild wetlands, buffer shorelines against storm surge, and restore habitat in real restoration work with communities like the Pointe-à-Chien Indian Tribe.

That testing phase — including pilot islands at Bayou Bienvenue that compared recycled glass sand against dredged river sand while monitoring storm surge behavior and habitat creation — proved the concept was viable. And it changed how the founders thought about their company.

They weren't just a recycling operation pretending to have a climate angle. They were becoming a climate company that happened to recycle glass. The bottles people drank Saturday night could become material that helps defend their coastal communities.

By 2024, they'd supported four restoration projects in Louisiana while continuing to expand residential and commercial collection. Over 10 million glass bottles had been saved from landfills.

How Did Glass Half Full Scale to a Multi-State Operation?

A $6.5 million seed funding round in 2024 from Benson Capital Partners and co-investors transformed Glass Half Full from a local New Orleans startup into a multi-state regional green-industry player.

A $6.5 million funding round in 2024, led by Benson Capital Partners with support from Momentum Fund, Innovation Catalyst, and other co-investors, transformed Glass Half Full from an ambitious local operation into something genuinely regional.

The money wasn't going to optimizing the existing New Orleans operation. It was going to the Gulf Coast. Louisiana, Mississippi, Alabama, Florida. Multiple states. Multiple parishes. The model that started with two Tulane students and borrowed trucks suddenly had the resources to scale.

The company now diverts over 7 million pounds of glass annually — material that would've sat in landfills and instead becomes marine-grade sand used in coastal restoration, construction, landscaping, and local artisan work. They employ paid staff, coordinate volunteer corps, and throw an annual Glass Gala that works as both fundraiser and community awareness event.

How Has Glass Half Full Transformed Since 2020?

Can Other Cities Replicate Glass Half Full's Model?

Yes, the Glass Half Full model works in any coastal or river city with high glass waste and weak recycling infrastructure — including Miami, Houston, Charleston, and New York.

Here's what makes Glass Half Full interesting beyond New Orleans: the model works anywhere a city has (a) high glass consumption, (b) weak existing recycling infrastructure, and (c) climate vulnerabilities that need addressing.

That describes Miami. Houston. Charleston. New York. Basically any city that's either coastal, riverine, or both — places where sand is valuable infrastructure and glass is currently just waste.

The transferable playbook is simple: Start hyperlocal. Solve a visible waste problem that people can see and feel. Then plug that solution into bigger resilience work — coastal restoration, flood mitigation, whatever the region's actual threat profile is. Partner with environmental organizations and local entrepreneurs. Build a revenue model. Scale deliberately. If you're thinking about your city's climate vulnerability, climate action isn't always about adopting cutting-edge tech — it's about connecting local problems to bigger infrastructure solutions.

Glass Half Full isn't a viral startup. It's a proof of concept that solving one problem well (glass waste) can unlock solutions to a much bigger problem (coastal defense) if you build partnerships instead of just processing volume.

What Technology Powers Glass Half Full's Operations?

This is important: Glass Half Full is a climate-first company, not an AI company. But like many climate-first companies scaling fast, they use smart tools intelligently.

Route optimization cuts fuel consumption and emissions on collection runs. Computer vision flags contamination on the processing line before material reaches final processing. Data modeling demonstrates glass-sand coastal protection efficacy per ton — material used to convince regulators and policymakers that recycled glass belongs in restoration budgets.

The technology serves the mission. It doesn't replace the mission or become the story. Like wellness technology that measures real health outcomes, the best climate tools are the ones you barely notice because they're too busy delivering results. The impact is the point.

How Can You Support Glass Half Full's Mission?

New Orleans residents can sign up for free pickup service, use drop-off locations, volunteer, or attend the Glass Gala; everyone can donate or bring the model to their own city.

If you're in New Orleans: Sign up for residential glass pickup, use drop-off locations (including French Quarter windows), volunteer with Glass Half Full or the Glassroots nonprofit arm, or attend the annual Glass Gala for fundraising and community celebration.

If you're outside New Orleans: Follow Glass Half Full's expansion across the Gulf South. Donate to support coastal restoration work. Or start thinking about your own city's waste-to-resilience opportunity. Local environmental groups and entrepreneurs in your region might be ready for the same conversation Trautmann and Steitz started: What if we didn't throw away the obvious solution?