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Picture Pile

Main Project Information
Presented By IIASA
Goal Sort picture piles and help science solve global problems!
Task Sort picture piles.
Where Online only

In Picture Pile you can help science solve global problems like climate change and hunger by sorting with other players picture piles!

The sorting works quite similar to the popular dating app Tinder. You see an image and the game asks you a question like “Do you see tree loss over time?”. You can now answer by dragging the image to the right to say “yes” or left for “no”. In addition if you are unsure you can swipe the image down to say “maybe”.

How to Join

Picture Pile can be played in a browser ( or on iPhone, iPad and Android and is available here:


GooglePlay Store:

Project Timing Picture Pile has no end date. Always new piles will be added to the game once a pile has been sorted.
Social Media
Required Gear

Desktop computer or a smartphone or tablet.

Special Skills None.
Ideal Age Group Elementary school (6 - 10 years), Middle school (11 - 13 years), High school (14 - 17 years), College, Graduate students, Adults, Families
Spend the Time outdoors
Type of Activity At home, Exclusively online, On a walk, run, At school, At night, At sports stadiums
Media Mentions
and Publications
Tags Classify Pictures, Climate Change, Cropland, Cropland Capture, Geo-Wiki, Help Science, Hunger, IIASA, Picture Pile, Sort Pictures
Project Updated 05/23/2018