My grade 8 class is asking;

"Couldn't science end this debate if they really wanted to if it's really about the death of our planet that we all live on?
If climate change is a real planet flattening end of the world, then why isn't it as real as they say the planet isn't flat? 

Are they also only 99% sure the planet isn't flat?

Will they say it before it's too late to say it?"