Climate change and permafrost thaw alter greenhouse gas emissions in northern wetlands

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A peatland site in Alberta Canada that experienced permafrost collapse within the past 100 years. Credit: Merritt Turetsky Michigan State University
A peatland site in Alberta, Canada, that experienced permafrost collapse within the past 100 years. Credit: Merritt Turetsky, Michigan State University

Permafrost – the perpetually frozen foundation of the north – isn’t so permanent anymore, and scientists are scrambling to understand the pros and cons when terra firma goes soft.


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All News summaries for August 09, 2007

NASA's space water recycling system has hiccups

2 hours ago | User rating: not rated yet
(AP) -- NASA's revolutionary new space water recycling system is having serious hiccups. The $154 million device for turning astronauts' urine and sweat into drinking water aboard the international space ...

NASA scales back flagship Mars mission

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(AP) -- NASA is scrapping a controversial piece of hardware from its next-generation Mars rover that would have allowed the spacecraft to store rock fragments in a mini-basket for a future mission.

Would-be Japanese space tourist wants $21M back

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(AP) -- Japanese millionaire Daisuke Enomoto had planned to dress up as his favorite cartoon character in outer space and spent $21 million to make it happen. Now he claims the company that was supposed make his dream come ...

Iconic rings and flares of galaxies created by violent, intergalactic collisions

6 hours ago | User rating: not rated yet
The bright pinwheels and broad star sweeps iconic of disk galaxies such as the Milky Way might all be the shrapnel from massive, violent collisions with other galaxies and galaxy-size chunks of dark matter, according to a ...

Dawn Glides Into New Year

6 hours ago | User rating: not rated yet
(PhysOrg.com) -- NASA's Dawn spacecraft shut down its ion propulsion system today as scheduled. The spacecraft is now gliding toward a Mars flyby in February of next year.
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