Regular fireworks are bad for the environment. If you use eco-friendly fireworks, little or no damage will be done to the environment. Eco-friendly fireworks don't usually use any heat; eco-friendly fireworks are usually glitter that forms shapes (an environmentally friendly glitter bomb). Regular fireworks are usually blasted off over a body of water to keep everybody safe. However, this also means that any ash being ejected from the fireworks (they use actual fire) is going to end up with the fish (they don't like it; it kills them). We only have ONE WORLD! Please tell me how firing ash into rivers is going to help save it?
Credit to @OneWorld_ for the code and for the firework drawings. I found the environmentally friendly firework photos on the internet and through the website: PlayItGreen.com Credit to Scratch Sounds Library and Text to Speech extension for all of the sounds.