External and internal forcings: External forcing mechanisms involve agents acting from outside the climate system (e.g., Milankovitch cycles). Internal mechanisms operate within the climate system ...

Changes in Earth's orbit have helped pace climatic change for millennia. Scientists are now trying to understand whether - and how - these changes remodeled the landscapes our ancient ancestors ...

It has long been accepted that wobbles in Earth’s orbit around the sun influence the planet’s climate, with these Milankovitch cycles operating on periods measured in thousands of years.