Research Papers / How do you "show" instead of "telling" in a Global warming research essay? [2]

I am suppose to write an essay where I need to "show" instead of "telling" in the essay, I am confused about this topic.

Must include the following in the essay.

What happens if the global warming is real and we take action?
what happen if the global warming is not real and we take actions?
what happens if global warming is real and we take no action?

I am suppose to write an 700 words essay on the above questions but I don't know how to "show" instead of telling.