I can understand that. It's where I was not too long ago. It's a reasonable position.I am not a denier unless told it's the work of men...
I also think whether one thinks climate change — specifically the speed at which the climate is changing — is anthropogenic or not, if one believes it is a problem, then one can support measures to mitigate the adverse effects. E.g., a return to nuclear power, or the discouraging of homeowners rebuilding on the seashore, or seawalls and better drainage for NYC and other coastal cities...
I think to say there is nothing we can do about climate change is akin to saying no need to build a roof because it's gonna rain anyway.