If you have an important point to make, don't try to be subtle or clever. Use a pile driver. Hit the point once. Then come back and hit it again. Then hit it a third time - a tremendous whack.
Remember one very fundamental thing about life: Any experience that has not been lived will hang around you, will persist: "Finish me! Live me! Complete me!" There is an intrinsic quality in every experience that it tends and wants to be finished, completed. Once completed, it evaporates; incomplete, it persists, it tortures you, it haunts you, it attracts your attention. It says, "What are you going to do about me? I am still incomplete - fulfill me!"
Global warming, along with the cutting and burning of forests and other critical habitats, is causing the loss of living species at a level comparable to the extinction event that wiped out the dinosaurs 65 million years ago. That event was believed to have been caused by a giant asteroid. This time it is not an asteroid colliding with the Earth and wreaking havoc: it is us.
I like living. I have sometimes been wildly, despairingly, acutely miserable, racked with sorrow, but through it all I still know quite certainly that just to be alive is a grand thing.