Since you appear a little under-informed on the topic, I offer in good faith a video by Everyday Astronaut that addresses the subject at length:
https://www.youtube.com/watch?v=C4VHfmiwuv4
If you are disinclined to watch the full thing, here's the TL;DW: The amount of emissions isn't nothing, but it's not nearly as much as you think.
Biting the hand that feeds IT
