ClimateScience Olympiad 2021

Find solutions to Sustainable Development Goals (SDGs). $10,000 prize pool.

Register for a Qualifier in your language

Schools, universities, and others can host private qualifiers. Have one!

The tournament stages

We need more volunteer judges. Become one!

ClimateScience Olympiad procedure and structure

1. Qualifiers

Register until 31st Aug 2021.

Compete in teams of 2 (recommended) or on your own. Teams can apply together. Individual applicants are, if they wish for it, matched up with a teammate by us.

In a qualifier, you choose one of three problem statements to respond to. To help you prepare, you are told the topics 10 days before the event, but the exact problem statement is only revealed at the start of the actual qualifier event.

Then you have 3 hours to research (with internet connection) and write essay responses to questions related to the problem statement. ClimateScience will score each team's solution. All participants will receive a certificate and top participants a special honour.

Learn more:

There are over 500 qualifiers in 2021.

ClimateScience Qualifier

2. Semi Finals

September 2021.

The top 5% of all qualifier participants advance to the global semi finals. Semi finals are held online.

Semi finalists, are invited to a community education program that helps them prepare for the semi final (and final). Learn more in the FAQs.

ClimateScience community event

3. The Final

November 2021.

If you make it to the final, you have essentially won already. Why?

We initially planned to conduct the finals at COP-26, but we don't think it's responsible to fly people out due to the UK's current COVID-19 situation. Instead, we are organising an exciting online programme, including conversations between the finalists and major climate leaders. Stay tuned!

The top 3 teams split the prize pool of $10,000 (USD) with $5,000 for 1st place, $3,000 for 2nd, and $2,000 for 3rd.

ClimateScience community event

Helpful information

Walk-through for participants

Qualifiers in schools & universities

After your qualifier

The final judges

Renate Christ

Former Director at IPCC Secretariat

Jim Savage

Senior Manager of Data Science, Schmidt Futures

David Addison

Carbon Removal, Innovation and Sustainability Manager at Virgin Group

Vaitea Cowan

Co-founder at Enapter (Green Hydrogen)

Qualifiers and semi-finals are judged by our internal team.

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ClimateScience community event
ClimateScience community event
ClimateScience community event
ClimateScience lesson in a school
ClimateScience lesson in a school
ClimateScience community event
ClimateScience lesson in a school
ClimateScience community event
ClimateScience community event
ClimateScience community event



Who can participate?

We host two age brackets: 14-17 and 18-25. If you are in one of those at the time of registration, you are eligible regardless of nationality or other factors.

Both members of a team must be within the same age bracket at the time of application. We will require proof-of-age from everyone who makes it to the semi-finals.

Both age brackets participate in the same qualifiers and answer the same type of problem statements. However, we only compare participants within their age groups. This means we score the two brackets independently and normalise them within each other. Semi-finalists, finalists and eventually the winners are then chosen based on the highest normalised score across age groups. This ensures fair comparison regardless of age.


How can I prepare?

Qualifiers: Only 5% of participants can advance to the semi finals, so preparation can make a major difference. You could take our courses or complete our quizzes in the app. Beyond that, read about whatever you are interested in and connect things during the event!

Semi-finalists: If you made it to the semi finals, congratulations! All semi-finalists are invited to a ClimateScience-led training group to help you prepare intensely, if you want to.

Finalists: Same as semi finals.


What can I win?

Winners: The top 3 teams win US$5,000, US$3,000 and US$2,000, respectively. The prize money is split half/half between the two team members or awarded in full in case the winner participated on their own.

Finalists: If there's no more pandemic, finalists will meet in person and attend the 'Green zone' of the United Nations Climate Summit (COP-26) in Glasgow on Nov 1-12, 2021. We are applying for finalists to also get a chance to enter the zone where political conversations happen and will post an update on this by April 2021.

Semi-finalists: You are invited to a ClimateScience-led training group to help you prepare for the semi-final and, if you proceed, for the final.

More answers


Can I participate on my own?

Yes, but you'd likely have a higher chance of winning with a teammate.


Can I participate multiple times?

Yes, but only once per month and at most three times in total.


How does scoring work?

Become a judge here.

Complexity, relevance, reasoning, structure & effectiveness, and your ability to provide reliable sources. All teams will have access to the rubric prior to the event. A judge’s final score will be the teams raw score. Based on the all of the scores in a single age bracket over a one-month period, the z-scores for each team will be calculated. A z-score is the distance a raw score is from the average. More importantly, it allows us to normalize scores across different judges to provide a fair score to all teams.

Once we have all the z-scores from every team that competed in one month, we take the top 10% of the z-scores from the individual age brackets. The responses of this top 10% are rescored by another two judges. The z-score calculation process repeats and then the top 50% of these z-scores from both age brackets is determined. This top 50% of teams are those who will be invited to compete in the CS Olympiad Semi-Finals!


Who is ClimateScience?

We are a global charity creating and providing educational resources on solutions to climate change to 100,000s of people worldwide. Learn more about us at


What's the deadline?

Registration ends on August 31st, 2021. The last qualifiers will be in early September.