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News & Articles


From Climate Projections to Adaptation Plans: An Industrial Case Study
How can industrial facilities anticipate and reduce climate risks? Callendar and CNPP have joined forces to meet this challenge, generating detailed climate projections, turning them into a full vulnerability assessment and building tailored adaptation plans. This case study covering seven assets in Europe and the United States shows how this approach helps protect industrial infrastructure from climate change and strengthen long term resilience.
Dec 8, 20255 min read


Callendar Wins the EVOLEN Innovation Prize, Signaling Growing Industry Interest in ClimateVision
Callendar won the prestigious EVOLEN Innovation Prize on November 19 at the Cité des Sciences et de l’Industrie for its Climatology-as-a-Service solution, ClimateVision, recognized for helping companies integrate climate projections into industrial planning and decision-making.
Nov 24, 20252 min read


Belém Facing Climate Change : What Will the COP30 Host City Look Like in 2075 ?
Belém, which is currently hosting COP30, is also threatened by worsening heat waves, rising sea levels, and other impacts of climate change. Projections by Callendar using ClimateVision give an idea of what the Brazilian city will look like in 50 years.
Nov 14, 20253 min read


Coastal Risks: How Callendar Mapped the Future of Territories Facing Rising Seas
With nearly 20,000 kilometers of shoreline, France is particularly exposed to coastal risks: erosion, sea level rise, storm flooding... This article demonstrate a comprehensive methodology to assess these risks and their evolution with climate change. Applied to the entire territory, both mainland France and overseas territories, it provides an unprecedented assessment and shows how high-resolution, science-based risk assessment can be realistically performed on whole country
Aug 26, 20255 min read


Defining Heatwaves and Measuring Their Intensity: How the Historic 2003 Heatwave Could Become Commonplace in France
For planners, investors and policymakers, knowing when and where extreme heat will strike is crucial. Robust severity assessments is needed to offer a clearer view of potential impacts, yet heatwaves are complex and defined in many ways. This article presents a method from recent scientific research to measure severity and reveals how climate change is turning rare heatwaves into regular events.
Aug 12, 20255 min read


Mapping Wildfire Impact: Demonstration of a Scalable Methodology for Local Climate Risk Assessment
Wildfires are increasing worldwide due to climate change, yet many regions lack detailed historical data at local levels. We developed a scalable method using satellite data to estimate wildfire risk by administrative units, demonstrated on France’s complex municipal system. This approach highlights uneven fire exposure and can be applied globally, supporting insurers, planners, and utilities in climate risk management with consistent, location-specific insights.
Aug 7, 20254 min read


The $2 Trillion Question: Callendar Releases New Report on Short-Term Climate Risks for Global Infrastructure
Over $2 trillion in global infrastructure losses are expected by 2035 due to climate-related risks like floods, extreme heat, storms, and droughts. A new report from Callendar highlights outdated design standards as a key vulnerability across sectors including energy, transport, telecoms, water, and roads.
Jun 24, 20252 min read


Designing for the Next Heatwave: How ClimateVision Helps Build Resilient Data Centers
Data center failures during the 2022 UK heatwave exposed a critical flaw in how we design infrastructure: relying on outdated weather data. As climate change make heatwaves more severe and more frequent, extreme temperature assumptions fall short. Discover how ClimateVision, Callendar’s climate impact tool, empowers operators with cutting-edge climate projections,making it easier to build heat-resilient infrastructure, anywhere in the world.
May 5, 20253 min read


Selecting a Bias Correction Method: A Case Study on Multivariate Indicators
Univariate bias-correction methods can distort multivariate indicators, such as heat indexes that combine temperature and humidity.
Apr 6, 20256 min read
![[Case study] Use of Fire Weather Index Projections to Anticipate Climate Impact on Wildfire Risks for Hazardous Industrial Facilities](https://static.wixstatic.com/media/cbab40_6b81c6a246a14e29b7e79db68686e65d~mv2.png/v1/fill/w_333,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/cbab40_6b81c6a246a14e29b7e79db68686e65d~mv2.webp)
![[Case study] Use of Fire Weather Index Projections to Anticipate Climate Impact on Wildfire Risks for Hazardous Industrial Facilities](https://static.wixstatic.com/media/cbab40_6b81c6a246a14e29b7e79db68686e65d~mv2.png/v1/fill/w_320,h_240,fp_0.50_0.50,q_95,enc_avif,quality_auto/cbab40_6b81c6a246a14e29b7e79db68686e65d~mv2.webp)
[Case study] Use of Fire Weather Index Projections to Anticipate Climate Impact on Wildfire Risks for Hazardous Industrial Facilities
Uncover how fire weather index projections can help anticipate the impact of climate change on wildfire risks and protect industrial sites.
Feb 27, 20255 min read


Understanding Climate Projection Processing: Downscaling, Regionalization, Bias Correction...
Are you using projections to study the local impacts of climate change? Here are the essential processing you need to get accurate results.
Feb 20, 20256 min read


Is it possible to predict climate change's effect on wildfire risks? Exploring the Fire Weather Index and its applications.
This article explores one of the primary tools used to anticipate wildfire risks under climate change: the Fire Weather Index (FWI)
Jan 13, 20255 min read


Tutorial: creating an interactive map with Python and Folium
Use Python and the Folium, Pandas and Geopandas libraries to visualize complex geographic data on an interactive map.
Nov 28, 20243 min read


Tutorial: Accessing ERA5-Land reanalyses and calculating a climate normal with Python
As soon as the temperature rises a little, the question comes up: it's hot, of course, but is it abnormally hot?
Nov 28, 20248 min read


Tutorial: accessing the latest ESGF climate projections with Python
Comment télécharger gratuitement les données CMIP6, sur le futur du climat, via un navigateur ou python.
Nov 22, 20245 min read


Physical climate risks in the oil and gas industry: the textbook case of Hurricane Harvey
What are the concrete impacts of climate risks on businesses? Examples from the oil industry and Hurricane Harvey.
Nov 22, 20247 min read


"Scenario 4°C" : Everything you need to know about the new French reference projections for climate change adaptation.
What is the new "4°C scenario" that the French governement want to use as reference for climate change adaptation?
Nov 7, 20246 min read


New national climate change adaptation plan could step up physical climate risk assessments for French companies
To boost resilience, the new French adaptation plan could require companies to carry out climate vulnerability studies as early as 2025.
Oct 28, 20247 min read


Climate Change and Real Estate in France: How a Reform of the "CatNat" Insurance Scheme Addresses the Shrink-Swell Phenomenon.
After years of drought, a reform is addressing real estate damage caused by the shrink-swell phenomenon of clay due to climate change.
Oct 18, 20246 min read


Introduction to Extreme Value Theory for Climate Risk Analysis: Calculating a 100-Year Heatwave with Python
Can we predict the once-in-a-century heatwave in Paris ? EVT helps anticipate rare extreme weather events and adapt to climate change.
Nov 21, 20227 min read
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