📖 The ACX 2025 Prediction Contest Is Open!

The Astral Codex Ten Prediction Contest is back with an expanded $10,000 prize pool! Test your forecasting skills across geopolitics, technology, economics, and more with questions curated by Scott Alexander. Make your predictions by January 31 to compete.

🔭 The Bridgewater x Metaculus Forecasting Contest Goes Global — Feb 3

For the second year, Metaculus is teaming up with Bridgewater Associates to host a competition featuring $25k in prizes and potential opportunities with the asset management firm — and this year, forecasters from around the globe can compete.

Start here to register for the February 3rd competition, warm up on practice questions, and learn about the separate Open and Undergraduate leaderboards.

M

Group

What will global CO2 emissions (in tonnes) be in the following years?

25
19
157 forecasters

Make a Prediction

Yearresolution
Year25thmedian75th

PDF

CDF

community
<30B
lower 25%
median
upper 75%
>42B
0.1%
36.41B
37.09B
37.61B
0.3%

What was the final result?37.8B

Community Baseline Score
49.1
Community Peer Score
39.9

Forecast Timeline

Authors:
casens
Opened:
Closes:
Scheduled resolution:
Forecasting Our World in Data
Environment & Climate
2021-2025 Leaderboard
Our World in Data
United Nations Framework Convention on Climate Change
Chemistry
Paris Agreement
Atmospheric science
Carbon dioxide
Environmental science
Climatology
Carbon dioxide equivalent

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