Association Internationale de Climatologie - AIC

07/04/2026

https://www.facebook.com/share/18Sjf7cKzb/

20/03/2026

💶 Les demandes de bourses (frais d'inscription) pour participer au 39e colloque de l'AIC doivent parvenir au secrétariat avant le 25/04/2026 💭.

20/03/2026

👉 Pour participer au 39e colloque de l'AIC, il faut d'abord se pré-inscrire sur Azur colloque :

20/03/2026

📍39e colloque de l'AIC : 8-11 juillet 2026 à Dijon (France).
💶 Pour bénéficier d'un prix réduit, renouvelez votre adhésion à l'AIC (voir http://climato.be/aic/adhesion.html ).

18/03/2026

Météo et Climat est une association de loi 1901, reconnue d’utilité publique. Fondée en 1852 sous le nom de Société Météorologique de France, Météo et Climat a élargi son audience et diversifié ses activités.

18/03/2026

C'est bientôt l'équinoxe. Décryptage 👉

Découvrez la science derrière les équinoxes avec cette infographie! Apprenez-en plus sur le changement des saisons et l'équilibre entre le jour et la nuit.

18/03/2026

Explore our summary of the February 2026 Climate Bulletin.

Highlights:

☔ February 2026 brought exceptionally wet conditions to western and southern Europe, with very heavy rainfall causing severe flooding and landslides in France, Spain and Portugal.

🌍 Globally, it was the fifth-warmest February on record, with temperatures 1.49°C above the estimated 1850–1900 pre-industrial baseline.

🌡️ Europe saw sharp contrasts, from warmer-than-average conditions in western and southern regions to colder-than-average weather in Fennoscandia and the Baltic States.

🌊 It was the joint second-warmest February on record for sea surface temperature over 60°N and 60°S, with strong contrasts in the North Atlantic that likely helped fuel the storms affecting Europe.

🧊 In the Arctic, sea ice extent was the third-lowest for February on record.

Read our summary at the link: https://climate.copernicus.eu/exceptional-rainfall-and-flooding-parts-europe-and-north-africa-february

15/03/2026

The world just had the fifth warmest February, according to Copernicus ECMWF's monthly bulletin.

There was a strong temperature contrast within Europe. Warmer-than-average temperatures occurred across the United States, the Middle East, central Asia, and east Antarctica; cold conditions gripped Alaska, northern Canada, Greenland, and northern Russia.

Heavy storms and rain affected western Europe and northern Africa, with exceptional floods that caused widespread damage and loss of life and livelihoods. Severe flooding also hit Australia, Mozambique, and Botswana.

The extreme events once again highlight the need for - the top priority of the WMO community to save lives and protect economies.

04/03/2026

📢 Conference sur le Master Géographie, aménagement, environnement, développement (GAED) à l'Institut d'urbanisme et de géographie alpine (IUGA).
📅Jeudi 5 mars à 16h, en ligne, conférences hybrides et à distance - Forum des poursuites d'études - Université Grenoble Alpes

Biotechnologies, sciences pharmaceutiques, medtechs, numérique, recherche clinique, environnement : les masters Ingénierie de la Santé à Grenoble

23/02/2026

Updated climate indicators with 2025 data

Looking for visualisations of a range of climate indicators?

Examples include a graphic showing changes in global CO₂, temperature, and sea level over the last 2000 years.

All these point in one direction: the climate is changing, and the rapid changes started after the steam engine was invented and society started using fossil fuels to generate heat and power on an industrial scale.

All downloadable at Climate Visuals.

https://ed-hawkins.github.io/climate-visuals/indicators.html

23/02/2026

Urban heat island (UHI) effects happen when cities trap and re-radiate heat because of dense buildings, dark surfaces, limited vegetation, and waste heat from human activity.

Effective solutions work together at building, neighborhood, and city scale.

🌿 1. Increase Urban Green and Blue Infrastructure

- Urban trees & street canopies provide shade and cool air through evapotranspiration
- Parks, green corridors, and pocket parks reduce ambient temperatures locally and citywide
- Water bodies (rivers, wetlands, retention ponds, fountains) act as thermal buffers
- Nature-based solutions are especially effective in informal settlements where hard infrastructure is limited

Co-benefits: air quality, biodiversity, flood control, mental health

🏗️ 2. Use Cool & Reflective Materials

- Cool roofs (light-colored, reflective coatings) can reduce roof temperatures by 20–40°C
- Cool pavements reflect more solar radiation and store less heat
- Permeable surfaces reduce heat storage and support groundwater recharge

Best applied through: building codes, retrofit incentives, public procurement

🌱 3. Green Buildings and Roofs

- Green roofs lower indoor and outdoor temperatures
- Green walls and façades reduce heat absorption and improve insulation
- Rooftop gardens combine cooling with food security and social space

Key planning lever: mandatory greening ratios for large developments

🧭 4. Climate-Sensitive Urban Design

- Design street orientation and block layout to enhance wind flow
- Avoid deep urban canyons that trap heat
- Use shading devices, arcades, and setbacks
- Balance density with ventilation and green coverage

🚍 5. Reduce Waste Heat from Transport & Energy

- Shift to public transport, walking, and cycling
- Electrify transport and buildings
- Promote energy-efficient buildings and appliances
- Introduce district cooling systems where feasible

📊 6. Target Hotspots & Protect Vulnerable Groups

- Map heat-vulnerable neighborhoods
- Prioritize low-income and informal areas with trees, shade, and water
- Establish cooling centers and heatwave early-warning systems
- Engage communities in co-design and maintenance

No single solution fixes urban heat islands. The strongest results come from integrated packages combining elements of the solutions above.

Photo by Development Asia I Celina Garcia and Nathan Sarcia

23/02/2026

Contrary to what climate change deniers like to claim, climate models have actually done a very good job of predicting warming trends. A good overview is provided in the link below.

Also, before you start bringing up "doomsday" predictions, note that those are not based on the consensus models scientists rely on. Rather, they come from a combination of cherry-picking, misinterpretation, and media hype.
https://www.theclimatebrink.com/p/comparing-climate-models-with-observations?fbclid=IwY2xjawQBxcBleHRuA2FlbQIxMABicmlkETI3eHgzSU9mQ2lWUEpCZzhEc3J0YwZhcHBfaWQQMjIyMDM5MTc4ODIwMDg5MgABHjb1PHz3nUDaM6lKK7p3GLqvYG88zGGN27ucRw6XWqtHX2B2ss-V27dy3BC__aem_fbtqtxTZiGfzT_C6vR8UTw