Simple. There being no change. No difference in climate from what we have in our long-term records, at least none that couldn't be explained away by normal seasonal changes and planetary cycles. If there is no change outside of that, then the climate is stable and there is no human-driven climate change.
However, every single study I've seen trying to disprove or find out if there is any change has shown that there is significant climate change. By and large, this means that the globe in general will warm, but as it warms, extreme weather becomes much more common - that means droughts, floods, extreme winters and storms, more and more intense hurricanes and tornados, and extreme summers. Some areas will see more extreme summers than other places and some areas will be more impacted by floods than they will by drought. That's what change means. The globe as a whole is changing, but there's so much variance in every area that the exact nature of that change is different.
Science is built on trying to disprove yourself and others. For climate change, there is overwhelming evidence that it is making a significant impact on the world - so much evidence that it can't be disproven. And right now in climate change, we are all losing. The fight for humans now is to get everyone on board so maybe we don't lose as badly.