Meteorologist Hans von Storch was interviewed by Der Spiegel where he acknowledges the obvious: the computer models that predict global warming might be wrong. Some excerpts:
SPIEGEL: Will the greenhouse effect be an issue in the upcoming German parliamentary elections? Singer Marius Müller-Westernhagen is leading a celebrity initiative calling for the addition of climate protection as a national policy objective in the German constitution.
Storch: It’s a strange idea. What state of the Earth’s atmosphere do we want to protect, and in what way? And what might happen as a result? Are we going to declare war on China if the country emits too much CO2 into the air and thereby violates our constitution?
SPIEGEL: Yet it was climate researchers, with their apocalyptic warnings, who gave people these ideas in the first place.
Storch: Unfortunately, some scientists behave like preachers, delivering sermons to people. What this approach ignores is the fact that there are many threats in our world that must be weighed against one another. If I’m driving my car and find myself speeding toward an obstacle, I can’t simple yank the wheel to the side without first checking to see if I’ll instead be driving straight into a crowd of people. Climate researchers cannot and should not take this process of weighing different factors out of the hands of politics and society.
And on the 15-year pause in global warming:
SPIEGEL: Do the computer models with which physicists simulate the future climate ever show the sort of long standstill in temperature change that we’re observing right now?
Storch: Yes, but only extremely rarely. At my institute, we analyzed how often such a 15-year stagnation in global warming occurred in the simulations. The answer was: in under 2 percent of all the times we ran the simulation. In other words, over 98 percent of forecasts show CO2 emissions as high as we have had in recent years leading to more of a temperature increase.
SPIEGEL: How long will it still be possible to reconcile such a pause in global warming with established climate forecasts?
Storch: If things continue as they have been, in five years, at the latest, we will need to acknowledge that something is fundamentally wrong with our climate models. A 20-year pause in global warming does not occur in a single modeled scenario. But even today, we are finding it very difficult to reconcile actual temperature trends with our expectations.
SPIEGEL: What could be wrong with the models?
Storch: There are two conceivable explanations — and neither is very pleasant for us. The first possibility is that less global warming is occurring than expected because greenhouse gases, especially CO2, have less of an effect than we have assumed. This wouldn’t mean that there is no man-made greenhouse effect, but simply that our effect on climate events is not as great as we have believed. The other possibility is that, in our simulations, we have underestimated how much the climate fluctuates owing to natural causes.
SPIEGEL: That sounds quite embarrassing for your profession, if you have to go back and adjust your models to fit with reality…
Storch: Why? That’s how the process of scientific discovery works. There is no last word in research, and that includes climate research. It’s never the truth that we offer, but only our best possible approximation of reality. But that often gets forgotten in the way the public perceives and describes our work.
No. No. No. We’ve been told, ad nauseam, that the science is settled. And politicians are asking taxpayers to fund billions of dollars of projects based on that science. No way the entire alarmist community can get away with an “Oops, our bad.”