National Freezer Challenge 2025
2025-09-01 08:00 - 2025-12-31 17:00 UTC
As you might have seen already on LinkedIn, the NFU working group Sustainable Laboratories together with Green Labs NL launched the National Freezer Challenge 2025 on Monday. This challenge is a new initiative to collectively clean up our freezers to lower the footprint of laboratories. The challenge is simple: clean up your freezers and record how many boxes/samples you threw out from -20, -70/-80 freezers and liquid nitrogen storage. While it was mainly set up for UMCs, every lab can participate! More information and how to sign up can be found here: National Freezer Challenge 2025 – Green Labs NL
This event takes place from September 1st until December 31st

The Forest of Suriname
2025-10-11 08:00 - 2026-01-11 17:00 | Naturalis Biodiversity Centre, Darwinweg 2, Leiden, 2333 CR, Netherlands
Suriname is the most forested country in the world. But the forest is under serious threat, the plants and animals that live there, and the people who call it home. Indigenous peoples and Maroons have lived in the forest for centuries and have a unique relationship with nature, where caring for the forest is second nature: “We care for the forest, and the forest cares for us.” Come and discover the story of Suriname’s forest from the perspective of all its inhabitants.
The exhibition “The Forest of Suriname” can be visited from Saturday, October 11. Nature has a voice. Come and listen.

Together against women’s violence, Orange the world!
2025-11-25 - 2025-12-10
Only together can we make a difference. Violence against women and girls is a major global issue and that includes here in the Netherlands. As many as 61% of working women have experienced sexual harassment in the workplace, 30% have faced some form of physical misconduct, and 1 in 5 women experience partner violence. These are just a few examples of the many problems related to violence against women.
But everyone can make a difference. Orange the World is a global campaign by UN Women to end violence against women and girls. Workplaces are one of the environments where this violence can occur. By acting within companies between 25 November and 10 December, we can help fight this violence and make a real difference.
By joining the campaign, a company can show that such behavior is unacceptable and start an open conversation about inappropriate conduct. Raising awareness among employees, clients, and partners helps provide support where it is needed. Open conversations about violence against women and girls can empower victims to seek help. Join us and make a difference, Orange the World!
How can you participate?
You can take part in Orange the World in various ways. Choose one or more of the following actions:

Illuminate your building, fountain, bridge, statue, or another landmark in orange to show your company’s support for the campaign.
Display the Orange the World flag to strengthen the message.
Put up #Medestander (“Ally”) posters.
Hand out Orange Pins to employees and wear them during the 16 days of the campaign.
Post on social media using #OrangeTheWorldNL.
Encourage all employees to become #Medestanders (allies) by signing the #Medestander Pledge.
Organize your own fundraising or charity event.
Support employees who are experiencing violence.
Donate a portion of your company’s proceeds during the campaign to UN Women.
Sign the Women’s Empowerment Principles and join a network of companies committed to gender equality.
Set up a donation board in your workplace.

For more information about the campaign materials and activities, visit: Bedrijven – Orange the World
How can you receive relevant materials?
You can receive the relevant materials by sending us an email. Review the available materials and decide how your company would like to participate in the campaign. Then email your plans to orange@unwomen.nl to receive the campaign materials. Once this is done, your company will be added to the map of participating organizations. When the materials arrive, display them prominently and help raise awareness within your company. By standing together, we can create workplaces and communities where every woman and girl feels safe, respected, and empowered.
Together against violence toward women, Orange the World!
