Reddit is a social media site that lets users submit videos to their subreddits and have them viewed by other users.
Users can create, comment and delete content from the site.
It has grown rapidly since its launch in 2009, becoming the most popular platform for sharing videos and images.
The site now has more than 250 million registered users.
This article is part of our series, How Reddit Works.
This story first appeared on Al Jazeera and is reproduced here as part of the Climate Desk collaboration.