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- Better chow yields more milk: A more nutritious form of corn for dairy cows boosts farm profits, teen investigator finds
- Fuzzy future: Kids may suffer impaired vision from spending too little time outdoors, studies suggest
- Building with moon rocks: Working on the moon with lunar soil and grit could prove easier, more efficient and less costly than using earthly materials
EMISSIONS TRADING
View larger version. | This figure, to appear online the week of March 8 in the Proceedings of the National Academy of Sciences, traces the movement of these “outsourced” carbon dioxide emissions. The thicker the arrow, the larger the flow of emissions; numbers denote the mass of carbon dioxide transferred each year in millions of metric tons.
Credit: Davis and Caldeira
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