As I read it, he's not denying the effects either. He's just saying that not everything bad that happens wrt climate and weather is due to "climate change". Sometimes, it's just variations, which have always happened.
A recent example is the CA fires, there is zero evidence linking them to climate change - they did a study and found no effect - which of course was reported as "climate change to blame".
Can you point to this study? Or at least point to this "they" to whom you're referring?
Watch this if you want more info: https://www.youtube.com/watch?v=vDsjeKo3u3o
At the levels we're at now, CO2e imbalances definitely impact every single weather event on the planet to some degree, and you'd have to be delusional not to accept that.
If you want to claim a change anyway, the burden is on you to do the modeling and math to prove it.