video

https://www.pexels.com/videos/
Pexels provides high quality and completely free stock photos & videos licensed under the Pexels license. All photos are nicely tagged, searchable and also easy to discover through our discover pages.

https://www.openplanet.org/
Open Planet is a trusted, ever-growing visual asset library, created to address the challenge global storytellers face in scaling up communications about the planetary crisis. By capturing high-quality, inspiring footage, teamed with credible, world-class science, and making it accessible to all and available for free, we're empowering global and local content creators to tell stories that will drive the changes needed in the next decade.

https://pixabay.com/videos/
Pixabay is a vibrant community of creatives, sharing royalty-free images, videos, audio and other media. All content is released by Pixabay under the Content License, which makes it safe to use without asking for permission or giving credit to the artist - even for certain commercial purposes.