Overdue-glaciation hypothesis In his overdue-glaciation hypothesis  Ruddiman claims that an incipient ice age would probably have begun several thousand years ago, but the arrival of that scheduled ice age was forestalled by intense farming and deforestation by early farmers that began raising the level of greenhouse gases eight thousand years ago. The overdue-glaciation hypothesis has been challenged on the grounds that comparison with an earlier interglaciation (MIS 11, 400,000 years ago) suggest that 16,000 more years must elapse before the current Holocene interglaciation comes to an end. Data from even earlier ice-cores going as far back as 800,000 years ago suggest probable cyclicity of interglacial length and an inverse correlation with the maximum temperature of each interglacial . But Ruddiman argues URL that this results from a false alignment of recent insolation maxima with insolation minima from the past, among other irregularities that invalidate the criticism. Neolithic revolution The Neolithic revolution  or agricultural revolution  was a wide-scale demographic transition in the Neolithic. Historically verifiable, many human cultures changed from hunter-gatherers to agriculture and settlement that supported an increase in population. Archaeological data indicates that various forms of plants and animal domestication evolved in separate locations worldwide, starting in the geological epoch of the Holocene around 12,000 14C years ago (12,000–7,000 BP).
Overdue-glaciation hypothesis In his overdue-glaciation hypothesis , Ruddiman claims that an incipient ice age would have begun several thousand years ago, but that scheduled ice age was forestalled by intense farming and deforestation by early farmers that began raising the level of greenhouse gases eight thousand years ago. The overdue-glaciation hypothesis has been challenged on the grounds that comparison with an earlier interglaciation (MIS 11, 400,000 years ago) suggest that 16,000 more years must elapse before the current Holocene interglaciation comes to an end. Data from even earlier ice-cores going as far back as 800,000 years ago suggest probable cyclicity of interglacial length and an inverse correlation with the maximum temperature of each interglacial , but Ruddiman argues URL that this results from a false alignment of recent insolation maxima with insolation minima from the past, among other irregularities that invalidate the criticism. Neolithic revolution The Neolithic revolution , or agricultural revolution , was a wide-scale demographic transition in the Neolithic. Historically verifiable, many human cultures changed from hunter-gatherers to agriculture and settlement that supported an increase in population. Archaeological data indicates that various forms of plants and animal domestication evolved in separate locations worldwide, starting in the geological epoch of the Holocene around 12,000 14C years ago (12,000–7,000 BP).
A
,
D
probably
D
the arrival of
R
. But
, but
A
,
A
,