/sci/ - Science & Math

>>5004129

2.5 million years of ice age? Huh? There are ice age cycles every 100,000 years approximately? I am a climate science graduate student so I have to know this stuff. Not sure what you are talking about, do you mean there has been ice somewhere on the earth constantly for the past 2.5 million years?

Pic related, Vostok, Antarctica ice core records showing the last 3 or so ice age cycles.

>>4943226

On time scales important to us, yes we are. Obviously Milankovitch Cycles and Orbital Forcing is what caused Ice Ages in the past and is what decides the "background state" of temperatures. Humans are perturbations to these natural cycles though, so we really don't know how we will offset them or by how much yet.

Pic Related: Ice Core data to help you prove your point.

>>4858036

Too bad ice core data has no prior records of human induced climate change so we can only speculate how bad things will get. Top graph is a proxy for temperature. From Vostok, Antarctica ice core, 420,000 years of data.

Vostok ice core record (proxy for temperature is top plot) for past 400kyr.