Whilst it is undoubtably true that climate changes over time and the evidence does indeed show significant temperature shift over time the pace of change is the critical element.
There is plenty of evidence, often and too easily dismissed by people with opinion but no expertise, that shows human activity over the last few centuries is a major contributor to the rapid changes we are undoubtably experiencing in climate today.
Many of the actions proposed to alleviate this pace of climate change are and would be benefical to the greater human society whether or not they do indeed make a difference to the pace of climate change.

As for the application of tax revenue to the relevant area of need, well if one will insist on having politicans running ones country then one should not be surprised or disappointed when they fill their pock…, sorry steer funds towards their pet projects.
Benevolent dictatorship is the only way ;-).