Today’s Solutions: April 19, 2026

Back in July, we wrote about the world’s biggest rooftop urban farm in Paris, which recently started to bear fruit for the first time. Today, we’ll be skipping across the ocean to another French-speaking city—Montreal—where the biggest rooftop greenhouse just opened.

The Greenhouse was built by Lufa Farms and spans 160,000 square feet (15,000 square meters), or about the size of three football fields. It is intended to meet the growing demand for locally sourced foods. Using the new hanging garden trend, the greenhouse will focus on growing eggplants and tomatoes. It is the fourth greenhouse Lufa Farms have erected in the city.

Lebanese-born Mohamed Hage and his wife Lauren Rathmell, an American from neighboring Vermont, founded Lufa Farms in 2009 with the ambition of “reinventing the food system.”

At Lufa, about 100 varieties of vegetables and herbs are grown year-round in hydroponic containers lined with coconut coir and fed liquid nutrients, including lettuce, cucumbers, zucchini, bok choy, celery, and sprouts. Bumblebees pollinate the plants, while wasps and ladybugs keep aphids in check without the need for pesticides.

Now that’s some tasty, sustainable, locally-sourced produce.

Solutions News Source Print this article
More of Today's Solutions

Eat this amount of fruit daily to significantly lower diabetes risk

As you may already know, fruit is an excellent source of essential vitamins and minerals. A recent study, however, shows that just the right ...

Read More

A seat at the table for underrepresented communities

Climate change is already affecting all of us—however, those that bear the brunt of these consequences are predominantly from low-income, marginalized, BIPOC communities. So ...

Read More

Suffer from chronic lower back pain? New single shot treatment could be for you

Degenerative disk disease affects around 40 percent of the population over the age of 40, and those who live with the agony of the ...

Read More

Women in New Mexico make history with legislative majority

BY THE OPTIMIST DAILY EDITORIAL TEAM With 60 of the 112 seats in the state legislature, New Mexico women have set a new benchmark ...

Read More