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By James Mitchell Crow of Nature magazine The hole in the ozone layer over Antarctica is starting to heal, say researchers in Australia. [More]

NEW YORK -- A new scientific study suggests that the severe flooding that hit northern Australia earlier this year may have not been caused by rising global temperatures induced by greenhouse gases, but rather by the hole in the ozone layer. Research published last week by scientists at Columbia University's School of Engineering and Applied Science, in conjunction with partners in Canada, purports to demonstrate how the massive hole in the ozone layer of the atmosphere high above Antarctica is altering rainfall patterns in the Southern Hemisphere. The study ran in Science magazine Friday

The same company behind the popular Roomba robocleaner is producing an underwater robot that can stay below the surface for months.

Ice loss from the massive ice sheets covering Greenland and Antarctica is accelerating, according to a new study. If the trend continues, ice sheets could become the dominant contributor to sea level rise sooner than scientists had predicted, concludes the research, which will be published this month in the journal Geophysical Research Letters

A new study suggests some of Antarctica's ice sheet grows from the bottom up, adding a new wrinkle to efforts to predict how the continent's glaciers will respond to climate change. Radar images show that water under the base of the ice sheet refreezes into ice, creating a new bottom layer that accounts for up to half the total thickness of the ice sheet in some locations

The Polar Star cruise ship ran aground Monday en route from Antarctica to Argentina. None of the passengers onboard were injured.