As someone who has written papers on both solar influences on Terrestrial weather and the technology for alternative (green) energy sources, I have to say that I believe global warming is occurring, we are causing it, and we aren't acting fast enough to avoid a catastrophe.
If you don't trust the people proffering a solution in the US, then look elsewhere and see what groups in other parts of the world are saying.
I agree with everything you said, but I do think it marks a milestone toward equality, and a milestone worth recognising.
Ask the previous generation of women what it would have meant to them to have had a female leader of their country when they were growing up? I bet they'll tell you it would have made a difference to know that it was possible for them too - and not just in theory - it will have a psychological impact on young women (and men); which in turn will help make our future work-places less "hyper-masculine" and better environments for all.
No, it's not a magic pill, but every little bit helps.
The tree of research must from time to time be refreshed with the blood of bean counters. -- Alan Kay