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Make climate change tangible with Swiss open data

Welcome to “Hack with Admin CH”. In this repository, you will find all the information and tools you need to master our challenge. You can find more information about the challenge, our partners and us at

You can reach us in Discord Channel #18-foitt-fso.

Challenge description

While recent events let us have a glimpse at what our future in a world of rising global temperatures and increasingly hot and dry summers might look like, climate change and its impact on our everyday lives is a complex issue. While both historical data and official scenarios are available to us, truly grasping the scope, the "feel" of climate change remains difficult.

That's where our challenge comes in: help us make climate change more tangible by developing a solution that allows citizens to access and comprehend the information provided by the federal administration in an innovative way!

You can tackle the challenge from different angles

From a "simple" visualisation to innovative infographics, from an AR / VR solution to a game, surprise us! Can you think of innovative solutions that inform citizens and help lower the «low sense of urgency» barrier?


As stated in the sixth assessment report of the IPCC, global temperatures have already risen to 1.1°C above pre-industrial levels, affecting both natural and human systems in Europe. After this past summer, it's become quite clear that the impacts of compound heatwaves and droughts have become more frequent, with largely negative impacts projected for southern regions. Rising temperatures, loss of biodiversity and an increased frequency of extreme weather events – recent years seem to support what a lot of scientific data shows: the climate has changed, and climate change is accelerating. As an Alpine country, Switzerland is particularly impacted by these changes.

observed changes For instance, already today, Switzerland has experienced a long-term warming around two times higher than the global average. As a consequence, snow cover has diminished, hot days and heavy precipitation have become more frequent and more intense, the vegetation period has been extended and the zero-degree line has risen. And most strikingly, a very recent study has shown that the volume of the Alpine glaciers has shrunk by about 50 percent since 1931.

The official Swiss CH2018 Climate Change Scenarios show where and how climate change affects Switzerland. The expected consequences of unchecked climate change for Switzerland include more hot days, dry summers, heavy precipitation and winters with little snow. How drastic these changes will be depending on global efforts to mitigate climate change by curbing CO2 emissions.

Possible scenario in 2060, without mitigation: The average near-surface air temperature in Switzerland through June, July and August is about 4.5 °C warmer than today. At the same time, there is up to a quarter less rainfall, and the longest dry period without precipitation in summer lasts about 20 days instead of 11.

For example, in the hottest days in summer, temperatures could shoot up 5.5 °C higher than we are accustomed to now. Hot summers such as in the record year of 2003 have become the norm. Very hot days – with temperatures that used to occur only once in a year – are now occurring on average 18 times per year. Cities are particularly vulnerable to heat stress due to the formation of heat islands, with effects on health.

The official Swiss Hydro-CH2018 hydrological scenarios further indicate that climate change will also greatly affect water availability over the course of the year, with implications for our forests, agriculture, hydropower and biodiversity.


Have a look at the Jupyter notebook loading_datasets_example.ipynb to find examples of how to use the following datasets.

Ideas and examples

Publications and resources

A few definitions

Reference periods

Reference periods are usually 30 years long, to account for intrinsic climate variability. The Climate Scenarios CH2018 each describe an average level of climatic conditions over a period of three decades, grouped around the years 2035, 2060 and 2085. When the text refers to the “middle of this century” or 2060, this refers to the period from 2045 to 2074. Similarly, a reference to the “end of the century” means 2070 to 2099. Reference period for the climate scenarios CH2018 and Hydro-CH2018: 1981 – 2010. Usual reference for publications after 2021: 1991 – 2020. For some historical comparisons, reference is often 1961 – 1990 (or even earlier, sometimes pre-industrial). !! Be aware of the reference, since changes (in temperature, precipitations etc.) are usually presented as relative to a reference !!

Greenhouse gas-emissions

Representative Concentration Pathways (RCP)

  • RCP2.6: with concerted climated change mitigation
  • RCP4.5: middle-of-the-road scenario with limited climate change mitigation
  • RCP8.5: no climate change mitigation

Judging criteria

  • Value: Does your solution make a difference to citizens? Does it facilitate informed decision-making in our democracy?
  • Creativity: Does your solution convey information in an innovative / striking way? Thinking outside the box is encouraged!
  • Execution: Is your solution well designed? Is it usable in its current state? Does everything appear to work?
  • Trustworthiness: Is your solution well documented? Have you acknowledged data sources? If assumptions were made, have you clearly stated them?


Make climate change tangible with Swiss open data






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