Frogs, toads, newts, and salamanders, because they spend part of their lives in water and part on land, are particularly sensitive to poisons in the environment. Their skins are porous and thin, offering little protection against pesticides and herbicides. They serve the same purpose for the entire world as canaries once did for coal miners.
And now amphibian populations the world over are in decline and headed rapidly toward extinction. The grim details are here. What that's telling us is if we don't radically and quickly alter our environment, we're next.
This is not a question of good politics or bad politics. We have abundant evidence through the ages that humans are incapable of governing themselves rationally. The question here is whether we've got our act sufficiently together to save our own lives, and guarantee the existence of future generations.