rather than attacking Al Gore (like he cares, and talk about "echo chamber"!), why not address the point? Oceans "turning acidic" is shorthand for the oceanic buffer becoming saturated, after which pH changes rapidly. And yes, it amounts to "settled science", to the extent such a thing exists. If you don't believe it, simply provide an alternative theory that accounts for, and predicts the consequences of (e.g., unprecedented retreat of glaciers, reduction in polar ice fields), rapid increases in atmospheric carbon. I've heard none that are anywhere near as good as anthropogenic climate change.
The fossil fuel industries are extremely well established, rich, and (consequently) politically powerful. They have provided energy over the past 2 centuries that produced enormous increases in our standard of living. However, they will do anything in their power to delay the inevitable, eventual recognition that these fuels risk killing the planet. Now we must reduce the use of these fuels. I am skeptical anything will happen. Fortunately, we are probably at or near peak oil, so we may be saved some consequences without relying entirely on the foresight or courage of our political and economic leaders.