Small things matter

Through this project we will be encouraging young people to take more actions through the challenges and help the environment, the animals and themselves by living sustainable life. Doing small simple things that make a huge difference is a way to save the planet. All it takes are minor lifestyle adjustments. Let's all contribute to saving our planet every day of our lives.

Use Reusable Bottle

A reusable bottle saves dozens of plastic bottles from ending up in a landfill and taking hundreds of years to decompose.

Use Canvas Bag for Shopping

Reusable bags save both flora and fauna, and help cut down on the emission of dangerous greenhouse gases.

Start Cycling

Cycling reduces air pollution, saves money and it's increasing your energy. Think green, ride a bike!

Have a Vegetarian/Vegan Day

Raising animals for food produces more greenhouse gas emissions than all of the cars, planes, and other forms of transportation combined.


Sustainability Challenge is a one month project organized and lead by 12 volunteers from Portugal, Italy, Macedonia, Greece, UK and Czech Republic. This is the second Sustainability Challenge, the first one was last year also organized by 11 volunteers from 6 different countries.

The main goal for this project is to motivate, encourage and inspire the young people of Zagreb, Croatia and worldwide. Sustainable living is a lifestyle that reduces people's and society's use of the Earth's natural resources and personal resource.

Being sustainable reduces the carbon footprint by different kind of methods of transportation, energy consumption and diet. The best way to encourage young people is to show them they can be an example for the society by doing little things than can change the world and help the Earth.

During the project, the volunteers will organize workshops and different activities related to the challenges you can find here. They will be fun, easy and motivational.

Join us by implementing the challenges in your life and share your knowledge among the society!

Be a part of this project and let's help the Earth together!

Useful Read


Vegetarianism and Veganism

DO YOU KNOW THAT… You can improve your health by switching to a vegetarian or vegan diet and prevent from chronic diseases?


5 Facts About Local Food

…and some cool market places in Zagreb where you can find local seasonal products.


Morning Routine

Feel happier and more productive ​… especially hand-picked for people who hate routines!



Sports and physical development of our body are an important component of the harmonious functioning of a person.

What we did Last time

I am using reusable bag for shopping

Olgica Macedonia

I use everyday reusable bottle for water

Sara Portugal

I tried not using the heaters in the house too much, instead I wear more clothes

Catarina Portugal

I did the vegetarian challenge for two months

Giacomo Italy

I tried the cold shower challenge and bought local food

Tereza Portugal

I tried yoga and meditation at 3am in the morning

Angela Italy