The evolution of the first animals may have oxygenated the earth's oceans – contrary to the traditional view that a rise in oxygen triggered their development. New research led by the University of Exeter contests the long held belief that oxygenation of the atmosphere and oceans was a pre-requisite for the evolution of complex life forms.
The total mass of all life on Earth is about one third less than thought, a new analysis has indicated.
Nuclear reactors could soon be fueled with uranium harvested from the ocean, thanks to a new material.
A team of German researchers believe stimulating the growth of algae in our oceans may offer a viable method of removing excess carbon dioxide from the atmosphere.
Dry places are getting drier and wet ones wetter, say scientists, as the global rainfall and evaporation cycle accelerates.
The world's oceans appear to be acidifying faster than at any time in the last 300 million years, and sea life may well be unable to adapt.
ESA says its Mars Express probe has returned some of the strongest evidence yet that an ocean once covered part of Mars.
The increasing amount of dissolved carbon dioxide oceans is driving fish crazy, Australian researchers say.
The oceans and their beaches are now home to vast numbers of tiny pieces of plastic - and the source may be your washing machine, researchers say.
Swarms of spherical robots equipped with biogeochemical sensors could soon be cruising the oceans on study missions.
Astronomers have discovered an embryonic solar system surrounded by a cloud of water vapor that could eventually form comets and deliver oceans to dry worlds.
Bacteria in the ocean are communicating and cooperating in a phenomenon which could be having a significant impact on the planet's climate.
Earth's oceans could once have been giant icebergs floating through space, an ESA team has concluded, after examining the isotopic composition of a comet.
The large increase in atmospheric carbon dioxide at the end of the last ice age wasn't released by the oceans, scientists have concluded.
The deep oceans can absorb enough heat to mask the effect of global warming for a decade at a time, say scientists at the National Center for Atmospheric Research (NCAR).
A new analysis of the oceans' ability to absorb carbon has concluded that climate change is hampering their ability to act as a carbon sink.
The tiny algae known as phytoplankton - which form the basis of the entire marine food chain - have been disappearing globally over the last hundred years.
Elextrolux is attempting to bolster its green credentials by hauling a team on a global journey - to save six vacuum cleaners' worth of plastic.
Scientists think they've found the source of a huge carbon dioxide 'burp' which helped to end the last ice age 18,000 years ago.