7-Day No Single-Use Plastic
Avoid single-use plastic items like straws and bags for a week. Check in once a day.
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Nature · Facts & stats · iChallenge network
Daily facts and stats about going green, sustainability and nature, plus real challenges to put them to work.
What green pigment helps plants capture sunlight?
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One ranked attempt per day. Practice as much as you like.
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Avoid single-use plastic items like straws and bags for a week. Check in once a day.
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Set aside fruit and vegetable scraps in a container to compost or add to a local bin. Post a photo link.
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Spend one evening hour a day with nonessential lights and screens off. Check in once a day.
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Live counts from TheGreenChallenge.com. All arena stats →
Earned on any arena, shown on your profile everywhere.
Add your email to keep your level, streak and badges if you switch devices, and carry them to every iChallenge arena. One email when you save; no spam.
Fund a prize on TheGreenChallenge.com and your brand sits on the challenge card, the leaderboard and every finisher's share. Prizes only appear once they're funded, so players can trust what they see.
Post a link or note as proof. Approved entries finish the challenge and earn the Finisher badge.
Sponsors can fund cleanup and conservation prizes. Each funded prize is listed on its challenge card.
Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
100 points per correct answer, up to 50 more for answering quickly, a combo multiplier for answers in a row, and 150 bonus points for a perfect round.
Yes. Playing, streaks, badges and leaderboards are free. Some challenges carry a sponsor-funded prize; the challenge card shows it when one is funded.