What are microplastics, and why do they matter?

Microplastics are plastic fragments smaller than 5mm. They come from two main sources: primary microplastics, manufactured at that size (like microbeads in cosmetics), and secondary microplastics, created when larger plastic items break down in the environment.

[Placeholder] Expand this post with more detail on:

• How microplastics enter the ocean
• What eXXpedition's research measures
• Why this matters for marine life and human health

More posts like this will go up as the voyage gets closer.