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CAISL and the Environment

Making "positive contributions to our diverse and ever-changing world"

It is in our Mission but also in our hearts.

Students, Staff and Administration are equally committed to reduce as much as possible the carbon footprint we leave behind. Browse this page to learn about measures, campaigns, clubs and programs we have at CAISL.

Environment Ecolution Club Logo

EcoLution is a student led and teacher supervised initiative whose aim is to raise awareness to environmental issues and encourage action, communication and collection of data, through the implementation of eco-friendly habits on the CAISL community.

This year, in addition to the High School Club, there is also a Middle School one and together they have been raising awareness to several issues - see some of them on the posters section.

Try one or some of these recipes. Healthy, ecological, and gathered by students!

First page of the PDF file: EcolutionSustainableCookbook

EcoLution Posters

Poster about compost done by Ecolution MS
Poster about compost done by Ecolution MS
Poster about compost done by Ecolution MS
Poster about eletronic waste done by Ecolution
Poster about eletronic waste done by Ecolution
Ecolution (Environmental CLub) Poster about Corona Virus impact
Ecolution (Environmental CLub) Poster about food waste
Ecolution (Environmental CLub) Poster about paper consumption
Ecolution (Environmental CLub) Poster about disposable masks

About Endangered Species

Ecolution News

Ecolution Clubs visited Nãm Mushroom urban farm in Lisbon

Along the full morning of Wednesday, March 22nd, 32 CAISL Ecolution Club members together with several CAISL Ecolution PSG members went to visit a no-less-than-amazing mushroom farm in central Lisbon – Nãm Mushroom Farm.

CAISL Staff members participated in a tree planting action in Leiria

Continuing our now long-lasting partnership with AMI Ecoética, the environmental sustainability branch of AMI, 8 CAISL staff members answer the call to replant Pinhal de Leiria on the last 18th of March.

Students from CAISL Ecolution club adopted a forest to care for for the next 5 years

CAISL´s 4th graders together with MS and Elementary Ecolution members have officially kick-started our 5 year “Forest Adoption” program.

Upcycling for a Good Cause

CAISL's Ecolution Club and Parent Support Group (PSG) joined forces to come up with the school's first Upcycling Challenge.

Photo of the daily coffee grounds collection

Daily, one of the 10 alternating volunteers collects the coffee grounds  that would otherwise go to the undifferentiated garbage, and takes them to a compost pile. This initiative has saved kilos of high quality fertilizer going to waste.

A photo about the initiative "Fruta Feia"

On January 21st Middle School had the virtual visit of Mr. Artur, a representative of Fruta Feia, an initiative focused on reducing food waste.

A Sustainable Holiday Tree

This year, the HS and the MS Ecolution Clubs joined efforts with the Parent Support Group (PSG) and created their version of a sustainable Holiday Tree.

Photo of the HS Student Assembly

At the end of November, MS and HS both had an Assembly to celebrate student success. At the end of both Assemblies, after hearing about individual success in sport and arts, we realized that there is a lot of achievement we didn’t know. On Thanksgiving, that became another reason to feel grateful.

The CAISL campus and the Environment

Solar panels symbol

CAISL has solar panels that heat water for kitchen, showers, cleaning usages, and help with central heating. During Summer the system is self-sufficient.

Rain Water Collection Symbol

All rainwater is caught by grids all over campus and around the soccer pitches and is then used for the automatic watering system. This automatic watering system stops when it rains.

Windows Symbol

Exterior windows have a privacy window film applied that saves energy: it insulates the windows and blocks heat in the summer. 

Recycling Symbol

Recycling boxes are available anywhere in the campus including exterior spaces and each classroom making it very easy to separate waste.

Symbol for Heating and Cooling

The AVAC system is computer-controlled making scheduling easy, including the general shutting off of the equipment.

Hot water is always close to the faucet due to the recirculation pump system. To get hot water, there is no need to waste it by letting it run.

Lighting Symbol

LED lights are used throughout. LEDs last longer and consume exponentially less. In addition, there are light sensors installed in all toilets and hallways, as well as in outdoor spaces.

Bottle Cap collection point symbol

In addition to recycling, CAISL also collects bottle caps and has been for many years, having been able to convert them into several wheelchairs that were donated. 

No Single Use Plastics Symbol

Since 2018 no single use plastic bottles/cups are used at CAISL. Water fountains spread throughout and reusable bottles or cups are used instead.


CAISL is a student-centered educational community in which we challenge ourselves and each other to do our best and to make positive contributions to our diverse and ever-changing world.