I believe that the message the author is trying to convey in this excerpt is that humans need to take action to end further destruction of the natural environment, because if they don't, more and more species will disappear.
To have three main points your writing about in your topic. For example.... Timmy likes bread because it's tasty, delicious, and healthy
I feel like you should capitalize Industrial Revolution. it just doesn't look right if you don't capitalize it.