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This is the archive site of Global Sustainability Jam 2011-2018. From 2019 on please visit

Think Twice

THINK TWICE, Helping you find sustainable alternatives to fit your personal style

Think Twice monitors online clothing purchases to ensure they are sustainable, by providing better alternatives.

It is a browser plug-in that helps consumers make purchasing decisions that are aligned with their sustainable values. They offer friendly reminders and comparable alternatives from more sustainable suppliers when consumers are searching for items on e-commerce websites.

Key elements
(1) Convenience: help users make more sustainable online purchases that are in line with their values
(2) Trust: present reliable information from credible and expert sources to support their decision making
(3) Tangible: provide similar alternatives from sustainable brands and retailers

Submission files

Team members

Credits and attribution

Collaboration as part of the Global Sustainability Jam 2017 - Toronto. All materials and content are provided under CC license.

Amanda Gonsalves
Hanieh Khosroshahi
Kelly Okamura
Nathalia Prieto
Qisha Kendy

Creative Commons Licence