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.

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.

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.

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

Results of all participants from a month are announced by the end of the next month. For example, all participants from April receive their results by the end of May. Results will include your certificate of participation, and whether or not you’ve been selected for semi-finals. If you’ve been selected for the semi-finals you'll hear from us soon and if you haven’t been selected, then you can sign up to participate in another qualifier.

Topics are sent 10 days before the event date and if you’ve signed up within 10 days, you’ll get the topics email immediately. Please check your spam folder or search “Climatescience” in the search bar of the inbox to locate the mail. If you still can’t find it, email us your username at olympiad@climatescience.org and we will look into the matter.

No, currently you can either participate alone or in a team of two that you need to form on your own. We do not pair any random participants with each other.

You don’t have to do anything to cancel your participation. Simply sign up for another event. Beware that missing an event does count towards your maximum of three participations.

If you still haven't taken the exam, register again with the correct details and use the latest username and password. If you've already given the exam, please email us at olympiad@climatescience.org and we will take the request forward.

Only one of the team mates needs to submit the answers.

For all these queries, please go through the Olympiad webpage very thoroughly. We made this video to explain the whole process better.

Topics are sent 10 days before the event date and if you’ve signed up within 10 days, you’ll get the topics email immediately. Please check your spam folder or search “Climatescience” in the search bar of the inbox to locate the mail. If you still can’t find it, email us your username at olympiad@climatescience.org and we will look into the matter.

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

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!

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 climate-science.com

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