Elusive compounds of greenhouse gas isolated

Nitrous oxide (N2O) is a potent atmospheric pollutant. Although naturally occurring, anthropogenic N2O emissions from intensive agricultural fertilization, industrial processes, and combustion of fossil fuels and biomass are a major cause for concern. Researchers have isolated elusive transition metal compounds of N2O that provide clues into how it could be used in sustainable chemical technologies.

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The enigma of bronze age tin

The origin of the tin used in the Bronze Age has long been one of the greatest enigmas in archaeological research. Now researchers have solved part of the puzzle. They were able to proof that tin ingots found at archaeological sites in Israel, Turkey, and Greece do not come from Central Asia, as previously assumed, but from tin deposits in Europe.

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