Earth

Is a planetary biosphere necessary for the long-term survival of life?

The new study suggests that the joining of North and South America changed the salinity of the Pacific Ocean and caused major ice sheet growth.

Scientists have estimated that up to half of the recent warming in Greenland and surrounding areas may be due to climate variations that originate in the tropical Pacific, and are not connected with the overall warming of the planet.

Scientists are learning new information about atmospheric pollution levels in Earth's past by studying famous paintings.

A new study challenges the notion that a well-oxygenated atmosphere must pre-date a well-oxygenated ocean.

With the help of a tiny fragment of zircon extracted from a remote rock outcrop in Australia, the picture of how our planet became habitable to life about 4.4 billion years ago is coming into sharper focus.

Early Earth appears to have had some kind of cold shelter against the weak young Sun, but how exactly did the atmosphere protect the planet?

Scientists have discovered that land masses existed on the Earth 2.7 billion years ago.

Scientists have mapped a large reservoir of liquid water beneath the snow and ice of Greenland.

A dozen papers on geoengineering have been released in a special issue of the journal Climatic Change.