The lie mainly has to do with people wanting to see the direct cause. But there is never a direct cause to weather. There’s a probability of enhanced storm intensity, because we observe storms getting more intense. Was it that last storm? Maybe. But the answer I give is yes. Because in all likelihood, there is some influence.

But climate change is in fact real, has in fact caused damages. If you are concerned about immigration in Europe, consider that a drought led to a famine led to a civil war led to mass migration. Are there a lot more causes here? Sure. What was the cause? Probably a lot of things. But the weather was surely one of them, and models tell us extreme events become more common under a warming Earth.

Climate change has already affected your life. Statistically, it must be so! Just because I cannot say how exactly it has done so, leads people to discount me. So let’s just pretend I know how, so I have a bare chance of being taken seriously. Else my hedging be mistaken for lack of certainty, by confirmation bias of people who yearn for my uncertainty.

I see it as akin to novels. The whole point of fiction is to create empathy for another point of view, though the method is a thicket of lies. The truth can very often not be looked at directly. Tell a teenager not to worry about what other people think — see if they get it. Tell a person that being racist is dumb, and see no behavior change. But a story might work, as a magick spell to get one to feel empathy, a lie that reveals truth.

As other people have stated, its not as simple as lie/don't lie.

Many people simply don't want to acknowledge certain realities:

There is an overwhelming majority of people who lack the capacity/ability/attention span to look clearly and rationally at a complex topic and evaluate the available evidence in anything remotely close to a nuanced, well educated fashion.

You then have to add to this that these same people are being mass manipulated by bad actors with nefarious agendas and large budgets and resources. And then there's the fact that the internet has allowed people to live with the illusion that their understanding parallels that of people with infinitely greater education and experience.

Any public communication has to take this in to account. Believing that the rubes will somehow find their way to a reliable conclusion if you simply tell them 'the truth', is a recipe for playing into the hands of the nefarious (who are more skilled at portraying their self-serving bullshit).