I dont know, but the last glacial periods started after rapid (in geological terms, still long times) increases of temperature. Followed by declining temperatur

I dont know, but the last glacial periods started after rapid (in geological terms, still long times) increases of temperature. Followed by declining temperature and increasing ice volume over thousands of years. https://en.wikipedia.org/wiki/File:Ice_Age_Temperature.png https://en.wikipedia.org/wiki/File:Ice_Age_Temperature.png