Ice sheet dynamics do of course have an immense role in Earth climate at any time in the deep past. (judithcurry.com)
The outcome — severity of earth climate changes depend on our actions today, we can still modulate the temperature curve. (climatestate.com)
Which is also not based on any good science, and in the face of Earth climate history with CO2 level changes in the range of «less than 200ppm» to «7,000 ppm» is a ridiculous claim. (wattsupwiththat.com)