Proceedings of the National Academy of Sciences

Ocean 'dead zones' a growing disaster for fish

Falling ocean oxygen levels due to rising temperatures and influence from human activities such as agrochemical use is an increasingly widespread problem. Considering that the sea floors have taken more than 1,000 years to recover from past eras of low ox ...

dateApr 09, 2015 in Earth Sciences
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Preventing Australia's biodiversity from collapsing

Preventing Australia's biodiversity from collapsing needs long-term science-based programs that are more complex than just culling cats and foxes, says leading environmental scientist Professor David Lindenmayer.

dateApr 08, 2015 in Ecology
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Lead hokes the age

Rocks do not lose their memory across Earth history, but their true ages might be distorted: Even under ultra-high temperature metamorphic conditions exceeding 1200°C, zircon retains the lead content accumulated ...

dateApr 06, 2015 in Earth Sciences
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