You can't say she doesn't know the science. She is extremely accomplished and knowledgeable. This video is over 90 minutes long, so I'll summarize:
- The data mainstream climate scientists are using are correct, but their interpretations rely on too many assumptions and outright false ones.
- For years, a false assumption of ever-increasing emissions which Curry labeled extremely implausible (to the point of being virtually impossible) was used to form the models. Although models are starting to correct for this false assumption, this mindset pervades to this day.
- The models have a range of outcomes, which the media (predictably) and others at the IPCC always promote the worst-case scenarios.
- At least in North America, the 30-year period from roughly 1930 to 1960 showed worse weather than we have currently.
- There's too much variability in ocean currents, cloud formations (natural happenings), etc., to reliably state recent warming trends are due to CO2, which leads to...
- The earth has greened by 15% over the past two decades, meaning greater crop production and yields. Other positive factors of a warming earth are also ignored.
- Michael Mann's "hockey stick" graph was dishonestly graphed to look worse than things really are, which the media latched on to.
- Curry believes the climate is not nearly as sensitive to CO2 as the modelers are saying.
- Looking at the models objectively, Curry believes there is a decent chance the earth will see a period of cooling over the next 30 years.
- Projecting 50 years into the future, like Richard Lindzen, she believes the earth will be no worse off than it is now.
- Shutting down fossil fuel production and usage will cripple developing nations that need this technology to develop.
- The "scientific" community, it seems, is liable to the same human foibles as any other human being - intimidation, harassment, moral outrage instead of "following the science."
As to the last point, she left Georgia Tech in 2017 because of those factors. But prior to leaving Tech, she founded a business forecasting weather and climate models that many industries depend on, and they pay her for her expertise. And these are not fringe companies.
Link: Dr. Judith Curry - voice of reason