Mary Mazzoni

Based in Philadelphia, Mary Mazzoni is the senior editor of TriplePundit. She is also a freelance journalist with a passion for storytelling and sustainability. Her work has appeared in the Philadelphia Daily News, Earth911, the Huffington Post, Sustainable Brands and the Daily Meal.

Mary is a lifelong vegetarian with an interest in climate resilience, clean tech and food justice. You can contact her at mary@triplepundit.com.

Original Unverpackt co-founder Sara Wolf (left) packs up some perfectly-portioned bulk buys.

3p Weekend: 10 Companies That Are Rethinking Food Waste

Food waste is a staggering global problem: Roughly a third of the food produced for human consumption every year — approximately 1.3 billion tons — is lost or wasted. But a select few companies are taking innovative approaches to cut those figures down to size. From small startups to major multinationals, this week we tip our hats to 10 companies that are rethinking food waste.

Sen. Gaylord Nelson, often called the "father of Earth Day," chats with children in a Wisconsin marshland.

3p Weekend: The History of Earth Day — In Less Than 5 Minutes

Even as the cynic within us gripes about yet another Earth Day, it’s important to remember how the tradition began. Ready for a five-minute history lesson? Grab a fresh cup of coffee, and brush up on the history of Earth Day.

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3p Weekend: 5 Cities and States That Are Ending Homelessness

Although study after study has shown that it costs states and cities more money to leave homeless people on the street than it does to give them a place to stay, few localities have done anything with this data. But a select few are leading the charge and showing that it is indeed possible to end homelessness.

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3p Weekend: 5 Signs American Food is Changing For the Better

American eating habits have been the joke of the world for years. The fat, lazy American filling up on junk food and soda proved to be both a punchline and an unfortunate reality. But if recent trends are any indication, the American food industry may be changing for the better.

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Stock Your Bar Cart with These Sustainable Spirits

We’ve already covered sustainable beer and wine in our 3p Weekend series, but what about sustainable spirits? From grain-to-bottle to fair trade certified, no bar cart is complete without these sustainable sips.

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3p Weekend: 10 Corporate Leaders in Water Stewardship

This Sunday, March 22, is World Water Day — a day to celebrate water and make a difference for those who lack access to it. To mark the occasion, this week we’re rounding up 10 companies that are proven leaders in water stewardship.

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3p Weekend: 5 Signs 2015 Is the Year of the EV

We’re only a few months into the year, but all signs point to 2015 being a big one for electric vehicles. So, start your (electric) engines and read on for five trends that caught our attention.

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3p Weekend: Top 10 U.S. Cities for Electric Vehicles

This week ChargePoint, the world’s largest electric vehicle (EV) charging network, released a list of the top 10 friendliest metropolitan areas for EV drivers. Curious to see how your city stacked up? Catch the full list after the jump.

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3p Weekend: 10 ‘Role Models’ Walk the Runway at NYFW

Budding fashion designer Carrie Hammer made headlines with her debut runway show this month, ‘Role Models Not Runway Models,’ which included powerhouse women from CEOs and entrepreneurs, to the first model with Down syndrome to walk the runway at New York Fashion Week.

Jesse Lopez, 27, an organizer for the United Food and Commercial Workers, holds a sign during a 2012 protest at a Pico Rivera, California Walmart.

Walmart to Increase Wages to $9 an Hour for 500,000 Workers

Stop the presses: Walmart just announced that it will increase wages to $9 an hour for half a million workers by April. Could the big-box retailer long bemoaned for its low wages finally be turning over a new leaf?

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Volkswagen Exec: We Need More Federal Investment in Electric Vehicles

“Automakers have effectively delivered electric vehicles that can satisfy the needs of most American drivers,” Sommer said this week in Washington, D.C. “In addition to the investment we and other companies and industries are making, we would like to see federal financing support for establishing fast-charging networks in urban areas and interstate corridors.”

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3p Weekend: 11 Sustainable U.S. Wineries

A few months back, we ran a roundup of the top 10 sustainable U.S. breweries. As the list made its rounds on social media, a few of you asked us to give a nod to the wine-lovers out there. You asked, we answered. Break out those glasses, and toast the weekend with a sip from one of these 10 sustainable U.S. wineries.