Metal model mimics metalloenzymes

(Phys.org) —Metal ions play critical roles throughout biochemistry, often facilitating the cleavage of the bond between the two atoms in an oxygen molecule in metalloenzymes. They are the key to oxidizing organic molecules ...

Cassini sees precursors to aerosol haze on Titan

(Phys.org) —Scientists working with data from NASA's Cassini mission have confirmed the presence of a population of complex hydrocarbons in the upper atmosphere of Saturn's largest moon, Titan, that later evolve into the ...

Four countries bring air pollution under EU limit

Eight European Union countries exceeded the bloc's air pollution limits in 2011, down from 12 the previous year, the European Environment Agency said in a report published on Monday.

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