Here we propose that
increasing variablility within the past million yearsmay indicate that the climate system was approaching a second climate bifurcation point, after which it would transition again to a new stable state characterized by permanent mid-latitude Northern Hemisphere glaciation.
The most compelling arguments to me are from
the variablility of the earth's orbit around the sun and the Sun's variable output of radiated energy.
Re # 78 and -LSB-[The most compelling arguments to me are from
the variablility of the earth's orbit around the sun and the Sun's variable output of radiated energy.]-RSB-