Can we predict when and where rock will fall?

(PhysOrg.com) -- Falling rock shatters the tranquillity of Yosemite National Park about every 10 days, and occasionally leads to fatalities. What forces trigger a rockfall? Are there precursor signals that one is imminent? ...

Bright water proposal to cut global warming

(PhysOrg.com) -- A Harvard physicist has proposed the Earth could be cooled by pumping vast numbers of tiny bubbles into the sea to lower ocean temperatures and increase the water’s reflectivity. The same strategy could ...

Geoengineering takes a ride in the shipping lanes

Ships blowing off steam are helping researchers understand how manmade particles might be useful against global warming. New results from modeling clouds like those seen in shipping lanes reveal the complex interplay between ...

Expert: Lift taboo on Earth engineering

(PhysOrg.com) -- The effects of climate change are so uncertain and potentially long-lasting that policymakers should begin examining options that include geoengineering, an area that has so far been off-limits, according ...

Risky schemes may be only hope for cooling planet: scientists

Sci-fi proposals to cool the planet are laden with risk but may be Earth's only hope if politicians fail to tackle global warming, scientists said on Tuesday in their biggest evaluation to date of "geo-engineering" concepts.

Time to lift the geoengineering taboo

Hot on the heels of the Royal Society's Geoengineering the Climate report, September's Physics World contains feature comment from UK experts stressing the need to start taking geoengineering - deliberate interventions in ...

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