Alvin and sheldons wonderings and discoverory

What is the past, present and future between global warming now and global warming later??

what causes global warming??

How is the ozone layer geting thicker??

What are the characteristices global warming /climate change??

What adaptions can we make??

why are animals getting extinged???

what are the consequenses that will happen if we keep doing this??

how can we compare the differences between how high the tempuratures are now than a long time ago??

what influnces us to keep doing what we are doing now??

how come it damages the ozone layer when you use something that sprays