Everyone is a Skeptic when it comes to religion. There are so many religions that it is impossible to be a believer in all of them so we are Skeptical about at least some of them. For the most part, we keep our Skepticism to ourselves because there is limited downside to letting others believe in whatever they choose to believe in as long as their attempts to convert the rest of us to their beliefs are kept within reasonable bounds.
However, if a religion exceeds those bounds, Skeptics will come out of the woodwork to attack that religion. Nobody wants to belong to a church that they believe is False. The propensity to not belong to someone else's church is so strong that wars have been fought over this sort of thing.
The Church of Human Induced Catastrophic Global Warmenism has exceeded reasonable bounds in trying to convert us all. This Church wants to use the full force and authority of the governments worldwide to force us to join. They want to limit our economic and political freedoms to force us to at least behave as if we believe.
To a great number of people, this is simply not acceptable and, sure enough, there is surge of Skeptics appearing all over the world.
I am one of those Skeptics. The science and economics on which the Church rests is full of holes, and unless that religion is one you wish to subscribe to, it may be safely ignored. If you do wish to subscribe to Global Warmenism, by all means please do so and limit your own energy usage and material consumption as you see fit.
Just don't impose your religion on the rest of us. Thanks.