Instead of asking users to log their own good environmental behavior, Alipay just watched what its own payment data already knew they were doing, and turned it into a tree-planting game played with friends.

问题

sustaining a beneficial behavior usually requires people to self-report it, and self-reporting is exactly the step most people won't bother with

背景

换别人会怎么做

The standard playbook for an environmental behavior program was to ask participants to self-report what they did — track your steps, confirm you took public transit, log your recycling — and reward them based on what they submitted, the same self-reporting structure nearly every prior sustainability or fitness incentive program used.

他们看到了什么

Alipay saw that the self-reporting step wasn't a minor inconvenience, it was where most participation quietly died, since asking users to separately log a low-carbon action added friction on top of the action itself. Alipay didn't need users to report anything, because its own payment data already recorded exactly the transactions that constituted low-carbon behavior, paying a bill online, buying a transit pass through the app, so the fix wasn't a better logging interface, it was eliminating the logging step entirely and converting existing transaction data directly into the reward.

那一手

Launched in August 2016, Ant Forest automatically converted transactions already flowing through Alipay into 'green energy' points with no separate logging step required, growing a virtual tree in the app as a user's points accumulated. Once a virtual tree matured, Ant Group's foundation partners planted a real tree, mostly in desertification-prone regions of northern China, on the user's behalf. A social layer let friends see and 'steal' small amounts of each other's collected energy, turning a passive accounting exercise into a habitual, competitive daily check-in.

为什么管用

Automatically converting transactions already flowing through Alipay into 'green energy' points with no separate logging step removed the exact friction point where most behavioral-incentive programs lose participants, letting a genuinely passive accounting process feel effortless to the user while still accurately tracking real behavior. Adding a social layer, letting friends see and 'steal' each other's collected energy, converted that passive accounting into an actively habitual, competitive daily check-in, which is why growth compounded so sharply, over 200 million users within five months and more than 700 million participants by 2024. Because the underlying data was already flowing through a payment platform used by hundreds of millions of people daily, the program could scale to genuinely large environmental outcomes, 548 million real trees funded, without needing to build or maintain any new tracking infrastructure beyond what Alipay already operated for its core payment business.

值了多少

Ant Forest reached over 200 million users within its first five months and, by August 2024, had drawn more than 700 million participants who collectively generated 37.68 million tons of tracked carbon-energy points, funding the planting of 548 million real trees across 24 Chinese provinces, concentrated in the 'Three-North' shelterbelt afforestation zone. Ant Group pledged ¥4.18 billion to the underlying tree-planting program over eight years, of which roughly ¥630 million was paid out as direct labor income to the rural workers who did the actual planting, alongside more than 4.2 million labor-day opportunities created in those communities.

什么时候会失灵

The mechanism depends on the platform actually having existing transaction or usage data that reliably correlates with the target behavior — a program trying to reward a behavior with no corresponding data trail already flowing through some system it controls would have nothing to convert automatically and would be forced back toward self-reporting. It also depends on users trusting that the automatic conversion accurately reflects their real behavior and isn't quietly under- or over-crediting them, since removing the self-report step also removes the user's ability to directly verify or contest what's being counted on their behalf. And the social, competitive layer that drove sustained engagement here depends on the underlying reward being something people want to show off or compete over; a less socially legible reward metric might retain the frictionless tracking advantage but lose the habitual engagement that made Ant Forest a daily habit rather than a passive background process users eventually stopped checking.

后来呢

Ant Forest is cited internationally, including recognition from the United Nations Environment Programme, as a model for converting existing transactional data into environmental incentive design rather than building a new self-reported tracking system from scratch, and its friend-based 'energy stealing' mechanic is studied in behavioral-design circles as a case of turning an individual environmental action into a habitual social game.

资料来源

1. [1]This app plants trees when people make lower-carbon choicesWorld Economic Forum, 2020weforum.org
2. [2]你每天早上准时偷能量，但"蚂蚁森林"背后是怎么运作的？品玩 (PingWest), 2017pingwest.com

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