WSI Saint-Gobain Sustainable Cities Challenge - 2021, SDG 11WSI

Congratulations to Winners and Finalists in the 2021 Challenge Season!

Here are the top competitors in the 2021-22 academic year NFTE World Series of Innovation.

Saint-Gobain Sustainable Cities Challenge - 2021

The Challenge: The Challenge: Design a solution to promote use of sustainable building materials or create a circular economy in building construction.


  • First Place: Cardbio, manipulates properties of cardboard to create several sustainable construction materials. Developed by 16-year-old Arnav Grover, a student at Academy of Information Technology and Engineering in Stamford, Connecticut. See their video here.
  • Second Place: Rubix Living, inspired by a Rubik's cube, this modular living unit serves to provide a sustainable housing solution to unhoused people. Developed by 15-year-old Renee Wang, a student at The Bishop’s School in La Jolla, California. See their video here.
  • Third Place: Reconcrete, leverages the limestone-forming ability of concrete to create a self-healing carbon-negative concrete solution. Developed 21-year-old Abhishek Patra, a student at the Birla Institute of Technology Mesra in India. See their video here.


  • ECOers, a concrete solution that utilizes irradiated plastic additives to minimize plastic pollution. See their video here.
  • Respire, a 3-step demolition/construction plan that utilizes basalt fiber reinforced polymer bars and self-compacting lightweight concrete to maximize cost-efficiency while preserving a circular economy on modern construction. Developed by a team in Monta Vista High School in Cupertino, California. See their video here.
  • Solar Sidewalks, a road system of interlocking hexagons made of recycled plastics to capture solar energy on roadway. Developed by a team from Mead High School in Spokane, Washington. See their video here.
  • Sustainable Vision, a processing facility proposal that partners with construction companies to foster collaboration for a circular economy. Developed by a team from Mater Dei High School in Santa Ana, California. See their video here.
  • CYR, a recycling company that specializes in construction materials and recycling education to promote sustainable construction. Developed by a team from Dakota Collegiate in Manitoba, Canada. See their video here.
  • Gypsun Inc., a gypsum recycling machine that uses renewable energy to decrease its ecological footprint. Developed by a team from Monta Vista High School in Cupertino, California.
  • Just Clean Recycled Furniture, a sustainable business that aims to use recycled construction material to create furniture and promote a circular economy. Developed by a team from Independence High School in San Jose, California.

I want to put a ding in the universe.

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More Challenges

6 Clean water and sanitationBank of the West Fresh Water Action Challenge

Bank of the West

sdg 6

Promote ways to reduce, reuse, and recycle water.

View Challenge

8 Decent work and economic growthCiti Foundation Future of Work Challenge

Citi Foundation

sdg 8

Empower young people with the tools for the future of work

View Challenge

15 Life on landEY Accelerating Environmental Sustainability Challenge


sdg 15

Protect, restore, or promote sustainable use of terrestrial ecosystems.

View Challenge

11 Sustainable cities and communitiesLink Logistics Green Buildings Challenge

Link Logistics

sdg 11

Helps buildings become more environmentally sustainable or promote the use of green building materials

View Challenge

14 Life below waterMary Kay Global Oceans Conservation Challenge

Mary Kay

sdg 14

Conserve and/or protect the world's marine ecosystems and coastal communities.

View Challenge

4 Quality educationMastercard Financial Education Challenge


sdg 4

Promote, educate, or increase access to financial literacy in your community.

View Challenge

13 Climate actionMaxar Climate Mapping Challenge


sdg 13

Use maps and satellite imagery that helps communities understand and adapt to the impact of climate change.

View Challenge

3 Good health and wellbeingMetLife Foundation Good Health and Well-Being Challenge

MetLife Foundation

sdg 3

Promote equitable access to physical and/or mental wellbeing in your community

View Challenge

7 Affordable and clean energyServiceNow Carbon Killer Challenge


sdg 7

Reduce carbon emissions in local communities.

View Challenge

13 Climate actionZuora Subscription Economy Challenge


sdg 13

Advance sustainability through innovation in the Subscription Economy

View Challenge

World Series of Innovation

NFTE hosts World Series of Innovation (WSI) as part of our commitment to the Global Entrepreneurship Network and the annual celebration of Global Entrepreneurship Week.

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