Doom warnings are almost always inheritly wrong, and is one of the reasons I refuse to get all panicky about global warming.
You're from Yakima, right?
It may interest you to know that 10,000 years ago Yakima was buried under 3 km of solid ice. There was permafrost in northern Germany. The ice was so thick that many coastal North European stone age villages are now far inland simply due to the land rising as the weight of snow decreases through melting.
That's not really that long ago. A minute, geologically speaking.
So my point is that what you call "doom warnings" are going to have to get a whole lot more hyperbolic before I start calling them implausible.
Non-scientists seem to be possessed by either the idea that the Earth was always like it is today and always will be, or that "the Earth will balance itself out." Neither is true. Which means warnings have a lot more weight.
In the 60s and 70s, scientists discovered that ice ages and glaciation periods come in cycles caused by LONG TERM factors, and that we are currently in an "interglacial period" which means we're due for more ice soon. The media reported this as "ZOMG WE'RE ALL GOING TO FREEZE TO DEATH."
In the following decades, scientists studied SHORT TERM factors like CO2 and aerosols which are causing an increasing warming effect due to the greenhouse effect. These are demonstrably warming the planet. The media reported this as "ZOMG WE'RE ALL GOING TO BOIL."
The "big picture" we have now is that the earth would be cooling without our interference, but we are introducing large short-term warming factors. These two do not balance: rather, the Earth is getting very warm very fast because our interference has been so severe.
There is no contradiction in the science, as the OP makes clear. The contradiction is in media coverage.
However, just because the media sensationalizes things, doesn't mean there's nothing to be concerned about. Your blase and dismissive attitude is worrying, if it's common. The real scientists think this is Bad Stuff, and so should you.