In the last 450,000 years the earth has had at least 4 major ice age cycles .What is the cycle we see and what is the cause of this cyclically of global temperatures and what does this say about a potential future glacial age?

Global temperatures

In the last 450,000 years the earth has had at least 4 major ice age cycles .What is the cycle we see and what is the cause of this cyclically of global temperatures and what does this say about a potential future glacial age?

50

L — 40 a) 30 a) u, 20°

10′

Glacial-interglacial cycles over the past 450,000 years

Inter- Inter-Inter- glacial Inter- glacial Into, glacial glacial A ill I ill glad .1 1 ILI I I IIII IMIll ril 111 ■ it i Glacial Glacial Glacial Glacial

400.000

300,000

200.000 Years Ago

100,000

Interglacials

Glacials

Today