The group 10:10 said the film, starring Gillian Anderson, was intended to "bring this critical issue back into the headlines whilst making people laugh," the BBC reported.
In the short video, posted on the group's site and later on YouTube, a teacher invites her class to join an environmental campaign. Two children who dissent are asked why.
The teacher tells them: "Fine, it's absolutely fine. It's your own choice."
Then she presses a button and the children explode.
Similar scenes take place in an office where four workers are blown up and a soccer training session where a coach disappears in an explosion.
At the end, Anderson meets the same fate after saying she thought acting and doing the voiceover was enough of a contribution.
Lizze Gillett of 10:10 told the BBC: "As you can see from various comments and social media sites, some people thought it was funny and a good tool to get people talking about climate change but others strongly disliked the mini-movie. We decided to take it off our Web site to avoid upsetting people."