The cold periods - or ice ages - are times when the entire Earth experiences notably colder ... the water near the surface dropped to between 5 and 8 degrees Celsius. Between 36 and 20 million ...

Mount Everest is Earth's tallest mountain - towering 5.5 miles (8.85 km) above sea level - and is actually still growing.

The evidence suggests that Greenland recently remained thawed for thousands of years in between periods of glaciation.

The first life forms to evolve on Earth were microbes which could survive in this primordial atmosphere but about 2.5 billion years ... Notably, during the ice ages which have occurred roughly ...

But the career of the Earth recedes into a remoteness against ... and the recent Imposing Ages of Ice were for a time considered as evidence of the approaching, inevitable and eternal frigid ...

Earth's climate has experienced major shifts over its billions of years of history, including numerous periods where ice ...

as so-called Milanković cycles are widely accepted as the cause of the periodic ice ages of the past 2.5 million years.

ScientiFix, our weekly feature, offers you a summary of the top global science stories of the week, with links to their ...

Paleoceanography 5, 835-844 (1990). Bond, G. et al. "The North Atlantic's 1-2 kyr climate rhythm: Relation to Heinrich Events, Dansgaard/Oeschger Cycles and the Little Ice Age," In Mechanisms of ...

Over 300 million years ago, before the age of giant dinosaurs ... what’s known as an Icehouse Earth state. The temperature would get significantly lower, and ice sheets would begin to form ...

The orbital quirks described above change how much of the Sun's energy reaches the Earth, and it accounts for variations in global temperatures in the order of 1.5 degrees Celsius. But ice ages ...

The persistent process of erosion is powerful enough to cause the world’s most intimidating mountain range to rise slowly up ...