KnowBe4 Sustainability Blog

How We Ditched Plastic This November

Written by KnowBe4 HR | Dec 16, 2025 9:33:08 PM

This November, KnowBe4 is renewing our commitment to planetary and personal health with Plastic Free November, a challenge that's more urgent than ever.


The stakes have never been higher. Microplastics have now been found in human bloodstreams, lungs, and even placentas. Recent studies reveal that the average person ingests approximately 5 grams of plastic weekly the equivalent of a credit card. These particles carry toxic chemicals like phthalates and BPA that disrupt our endocrine systems, increasing risks of infertility, cardiovascular disease, and certain cancers.

The environmental toll is equally devastating. Every minute, the equivalent of one garbage truck of plastic enters our oceans. By 2050, scientists predict that there will be more plastic in the sea than fish. Plastic production alone accounts for 4-8% of global oil consumption, and as it breaks down over centuries, it releases methane and ethylene, two potent greenhouse gases that accelerate climate change.
But here's the empowering truth: individual choices matter. When we collectively refuse single-use plastics, we send market signals that drive systemic change. That's why we're challenging our global team once again—because meaningful transformation starts with conscious action.

This November we engaged 329 participants (a 92% increase over last year!) from all 11 of the countries where we have offices. The challenges ranged from using reusable tote bags to creating zero-waste lunches, each aimed at reducing our plastic footprint.

The results were truly inspiring:

  • 272 People used reusable tote bags; with 272 consistent users, this could eliminate 99,280 plastic bags annually.
    319 Individuals opted for reusable cups or tumblers, preventing about 103,675 microplastic particles from entering the environment in just one month.
    296 People packed zero-waste lunches - this simple change could remove up to 213,120 plastic bags from the waste stream annually.
    235 People chose reusable gift wrapping options, such as using scarves instead of plastic-coated paper. The average American uses 4.6 pounds of wrapping paper during holidays, so this switch alone could save 1,081 pounds of wrapping waste this holiday season.
    205 People switched to plastic-free laundry detergent - traditional liquid detergent bottles weigh about 2 pounds of plastic. If used monthly, this switch could divert 4,920 pounds of plastic annually.

The creativity and commitment of our team members were truly inspiring. Participants made 208 plastic swaps throughout the month, demonstrating that eco-friendly options exist for almost every aspect of our daily lives. The most popular transitions included:


  • Switching to shampoo and conditioner bars instead of bottled products
    Replacing plastic toothbrushes with bamboo alternatives
    Swapping plastic containers for glass and metal storage options


Other innovative changes showcased remarkable ingenuity: participants crafted their own tooth powder to eliminate plastic tubes, used beeswax wraps instead of plastic cling film, switched to compostable phone cases, replaced plastic pill holders with glass ones, and even made reusable grocery bags from old yarn. Personal care products underwent a significant transformation, marked by the introduction of solid makeup removers, plastic-free deodorant in cardboard tubes, safety razors replacing disposable plastic ones, and lip balm in biodegradable paper tubes. Some participants went beyond product swaps, replacing plastic pens with bamboo alternatives, using wooden combs and brushes, switching to loofah sponges for bathing and dishwashing, and creating jute bags for shoe storage.


These swaps not only reduced plastic waste but also encouraged a more mindful approach to consumption—proving that with creativity and commitment, nearly every plastic item in our lives has a sustainable alternative waiting to take its place.


The Cumulative Impact of These Actions is Staggering

26,033+ Plastic bags prevented from entering the waste stream through use of reusable shopping bags in November alone
17,760+ Plastic bags eliminated through zero-waste lunches this month (296 participants × 60 bags/month)
103,675+ Microplastic particles avoided by using reusable bottles instead of single-use water bottles
410+ lbs of Plastic detergent bottles diverted through plastic-free laundry choices
208+ lbs of Plastic prevented through individual product swaps
An Estimated 0.67 tons (1,335 lbs) of CO2 emissions reduced through combined plastic reduction efforts


To put this into perspective, in just one month, our participants achieved the equivalent carbon reduction of about 30 mature trees working for a month. The plastic weight prevented from entering the environment in November alone (~865 pounds) is equivalent to about 19,659 plastic water bottles or the weight of an adult male lion! And by preventing over 43,000 plastic bags from entering circulation this month, our participants protected countless marine animals from ingestion and entanglement—plastic bags are often mistaken for jellyfish by sea turtles and can be fatal when consumed.

If we continued this practice over the year, the CO2 emissions reduced would be equivalent to the annual carbon sequestration of about 362 mature trees. The plastic weight prevented from entering the environment through swaps and laundry choices alone (7,416+ pounds) is equivalent to the weight of a fully grown male polar bear!

But our efforts didn't stop at action; we also focused on education. Participants watched 42 documentaries exploring the detrimental impacts of plastic on our health and environment, and 16 people delved deeper by reading books on the subject, including the eye-opening “A Poison Like No Other” by Matt Simon and "How to Give Up Plastic: A Guide to Changing the World, One Plastic Bottle at a Time" by Will McCallum.  There were also 39 social media posts made by participants throughout the month, spreading the education even further.

 

As Matt Simon poignantly states in his book, "You might question why as a society we would invest so much money and energy confronting the microplastics crisis when the climate crisis is an immediate threat to life on Earth. And to that I'd say the two crises are one and the same. Remember that by 2030, the manufacture and use of plastic is projected to generate as much greenhouse gas per year as 295 coal plants, and that will more than double by 2050…"

 

At KnowBe4, we're committed to being part of the solution, while recognizing the urgency of the problem. We embrace the apology, but also focus on action. We encourage everyone to join us in this crucial effort to reduce plastic use and protect our planet. Every single thing you do, no matter how small, contributes to a larger impact. Together, we can make a difference.


"A special atmospheric sampling aircraft once gathered microplastics 11,500 feet high. The particles are in snow cores from Iceland's Vatnajökull ice cap, 40 miles from the nearest urban area, and on remote Mount Derak in Iran." - Matt Simon


Special shoutout to our top performers in each country:

🇸🇬 Singapore - Rachel L
🇯🇵 Japan - Takafumi F
🇮🇳 India - Ramkumar R
🇦🇪 Dubai - Joseph K
🇳🇱 Netherlands - Ella M
🇬🇧 UK & I - Jacob M
🇿🇦 South Africa - Rhea P
🇩🇪 Germany - Verena R
🇦🇺 Australia - Rosa L
🇧🇷 Brazil - Raquel A
🇺🇲 US - Brooke D


This November, 329 KnowBe4 employees across 11 countries demonstrated that individual action can have a massive impact, preventing over 43,000 plastic bags from entering our oceans and eliminating more than 103,675 microplastic particles in just one month! 

With the average person ingesting a credit card's worth of plastic every week and scientists predicting that there will be more plastic than fish in our seas by 2050, the time for action is now. 

Discover the creative swaps our team has made (from bamboo toothbrushes to homemade toothpowder!), the eye-opening statistics behind our plastic crisis, and how you can join this crucial movement—because sustainability really is for everyone.