https://www.ipcc.ch/report/ar6/syr/downloads/report/IPCC_AR6...
Start with A: Observed Warming and its Causes and move onto b: B. Future Climate Change, Risks, and Long-Term Responses
C02 increases directly increase trapped solar heating.
There are other gases and other factors.
Re: GP comment
* Is Dutton making the claim that emissions are the cause now?
The journalist writing the Science article alludes to the fact that now (present time) Antartic sheet loss is being driven by warming oceans caused by greenhouse gas increases. With no quote marks it's unclear what Dutton had to say on this.
* I'll accept all of Dutton's claims, except that one; there is no basis for that claim.
It's not apparent that is a claim that Dutton made.
* Lower the chance of another collapse? By how much?
See IPCC reports.
* Would that have actually helped 100,000 years ago?
No. Actions taken today would not alter past history.
It's also not the case that ice sheet collapse 100K years ago was related to human or animal gas emissions, unlike today.
* I make the claim that Dutton is suffering from hubris.
You're free to do that. It's not a convincing claim.