Warming Antarctic seas likely to impact on krill habitats

Antarctic krill are usually less than 6 cm in length but their size belies the major role they play in sustaining much of the life in the Southern Ocean. They are the primary food source for many species of whales, seals, ...

Polar ecosystems vulnerable to sunlight

(Phys.org) —Slight changes in the timing of the annual loss of sea-ice in polar regions could have dire consequences for polar ecosystems, by allowing a lot more sunlight to reach the sea floor.

Giant Australian animals were not wiped out by climate change

(Phys.org) —Researchers have ruled out climate change as the cause of extinction of most of Australia's giant animals, including giant kangaroos, three metre-tall flightless birds and the Tasmanian tiger, around 50,000 ...

The breathing ocean: Reducing the effects of climate change

(Phys.org) —Each year, between the burning of fossil fuels and the clearing of old growth forests, humans put about 10 petagrams of carbon dioxide (CO2) into the atmosphere. A petagram is one quadrillion grams. Ten petagrams ...

Australia pushes for ocean 'fertilisation' ban

Australia said it was pushing for a ban Thursday of any commercial use of a pioneering technique to reduce the impacts of climate change by "fertilising" the world's oceans with iron, warning of significant risks.

Final frontiers: The deep sea

With the global population now well over seven billion people there are few remaining parts of the world relatively untouched by human activity. We assess the current state and future prospects of five final frontiers: rainforests, ...

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