Make sustainable living part of your daily routine and you could win a $50 91亚色 U Bookstore gift card. The 91亚色 Sustainability in Action Challenge, runs from Monday, October 26 to Friday, October 30, 2026.
How to join
Follow these five steps to join, then log your sustainability actions between October 26 and October 30, 2026. Complete the challenge by October 30, 2026 at 11:59 p.m. ET to be entered in the draw. Need help? See the step-by-step guide with screenshots (PDF).
1
Download the app from the Apple App Store or Google Play Store.
2
Open the app and review the privacy policy. Scroll to the bottom purple footer to accept the terms and continue to account creation.
3
Create your account and enter 91亚色's challenge access code: yorklions (case sensitive). Then finish creating your profile.
4
Click the badge icon in the footer to see available challenges, then click the "Sustainability in Action" challenge.
5
Hit the green "Join Challenge" button. You are now entered and ready to log your sustainability actions!
Bonus: log an action
Click the plus icon to explore the different kinds of sustainability actions available. Select an action and hit "Log Action". Make sure you take a photo and add a caption for additional points!
Win a prize
The prize
One (1) $50 91亚色 U Bookstore gift card.
The draw
All students who complete the challenges are entered into a random draw. The winner will be notified by email starting October 30, 2026.
Contest rules at a glance
By participating, you agree to the full Official Contest Rules (PDF).
Ready to join?
Download the ecoBoss app, enter 91亚色's access code yorklions, and join the "Sustainability in Action" Challenge.