Regardless of the cause of the swings (IMO natural), and regardless of whether we can do anything about them (IMO no), what we can and should be spending resources on is getting relocated and ready for a 20' sea level rise. To my knowledge, NO ONE ANYWHERE is doing anything at all about that. And that is what we need to fix. I am sure in the US and Europe we will able to take care of this 75 years from now on an emergency basis, but it would be easier to fix now. And I fear that in places like Bangladesh, where 100 million people live within 5' of sea level, and they do not have the technology and wealth to support rapid relocation, there will be extensive loss of life over a 100 year period.
Big time agreement here, although the relatively rapid rise of the oceans will be difficult to perceive even year to year, I suspect a large portion of the relocation will not be by choice. Large storms will roll in and kill or displace tens or hundreds of thousands at a time, and rebuilding just won't be an option. I'm not sure how many humanitarian disasters it will take before a major concerted relocation effort takes place.
Similarly, I don't think the moose population will just gradually decline in NH, but be hit with substantial drops from external factors, followed by occasional periods of recovery. Eventually it will either find a sustainable equilibrium, or the population will quickly die off. The moose are mating, but the yearling mortality rate is too high. The higher the mortality rate, the higher the replacement rate needs to be. I'm not sure how many yearlings a cow can produce in her lifetime though (I bet someone on here knows though!).
An analogy I would draw would be the difference between a few trees falling on a trail throughout the course of a year to a massive blowdown event. I've been told my analogies are terrible though, so that might not make sense outside my head.