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NatureChallenge.com impact ledger
Missions on NatureChallenge.com turn a daily habit into a counted result. This page is the running total.
Impact ledger
What players on NatureChallenge.com have actually done. Every check-in and approved proof adds one line. The math behind each number is shown on the card, with its source.
kg CO₂e avoided00.1 across the network
Local missions are things you can do where you live — in Columbus that means your own street, shoreline or school. Global missions add up across every arena on the network.
Local · CommunityProof+250 XP
Photograph and identify ten wild species (plants, birds, insects, anything) within walking distance of home. Post the list and a link.
+1 actions when approved
Counted as one completed survey. Upload your sightings to iNaturalist or GBIF and your list becomes open biodiversity data.
Counted with SavingTheWorld.org
Local · CommunityProof+250 XP
Give two hours to a conservation, garden, trail or watershed group near you. Post the group's name and what you did.
+2 hours when approved
Counted as two hours given. Groups you help may also list the work on Contrib.com.
Counted with Contrib.com
Global · PlanetProof+250 XP
Plant a native tree where it can survive, or sponsor one through a verified planting program. Post the species, the place and a photo or receipt link.
+1 trees when approved
One tree. We count trees planted or protected, not carbon, because a sapling's CO₂ uptake depends on survival, species and decades of time.
Counted with SavingTheWorld.org
Local · CommunityProof+250 XP
Spend an hour clearing litter from a beach, riverbank, park or your own street. Post a photo link or a short note with the spot and roughly how much you collected.
+4 kg waste when approved
One full standard trash bag of mixed litter weighs about 4 to 6 kg (Ocean Conservancy International Coastal Cleanup averages). We count 4 per approved cleanup.
Counted with SavingTheWorld.org
Local · CommunityProof+250 XP
Run a 20-minute session for a classroom, team or family on one topic from this arena. Post a photo link or a one-paragraph recap with how many people joined.
+1 hours when approved
Counted as one hour given. Reach is noted in your proof but not multiplied.
Counted with Contrib.com
Local · CommunityStreak · 14 days+220 XP
Each day note the high tide time, water temperature if posted, and wind at your nearest shore or lake. Check in daily.
+1 actions per check-in
Counted as one logged observation per day.
Tools that feed these missions
How we count, and what we don't claim
Check-ins are self-reported and shown as logged. Proof missions are reviewed by a person before they count as verified. Each per-action figure is a conservative public estimate (EPA, IEA, UN Environment or peer-reviewed sources named on the card), rounded down. These numbers are for keeping score and staying honest, not for carbon accounting or offsets. If you think a figure is wrong, say so on the contact form and we will fix it in public.