Researchers at ETH Zurich have been able to measure - for the first time - how the amount of dissolved organic carbon in the sea has changed over geological time. The results reveal that our explanati...

Abstract. Stable isotope analysis of O2 has emerged as a valuable tool to study O2 dynamics at various environmental scales, from molecular mechanisms to ecosystem processes. Despite its utility,…

The long read: Churning quantities of carbon dioxide into the atmosphere at the rate we are going could lead the planet to another Great Dying

Der Ärger über die US-Zölle beschäftigt auch in der Schweiz lebende US-Staatsbürger. Negative Reaktionen schmerzen.

A direct proxy for past dissolved organic carbon signatures using co-precipitated organic carbon in iron ooids enables reconstruction of marine dissolved organic carbon signals dating back to the Pala...

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Land surface modelling suggests that preserving woody debris in managed forests could remove 769–937 GtCO2 from the atmosphere between 2025 and 2100.

Twitter/X: @WeAreAGCjournal

We introduce a novel high-precision method for oxygen-isotope analysis of iron (oxyhydr)oxides using high-temperature conversion isotope ratio mass spectrometry (HTC-IRMS). In this approach, a finely ground mixture of iron (oxyhydr)oxide and graphite is heated at 1450 °C in a helium flow environment, converting oxygen to CO gas with nearly 100% yield. Continuous-flow IRMS analysis of the liberated CO yields a precision of ±0.15‰ (1σ, n = 28) and shows excellent agreement with (and improved precision over) traditional fluorination methods. This practical and safe technique expands access to oxygen-isotope measurements of iron oxides, thereby enhancing their utility in Earth and environmental sciences.

U.S. national-security leaders included me in a group chat about upcoming military strikes in Yemen. I didn’t think it could be real. Then the bombs started falling.

NOAA's Ocean Acidification Program prepares us for the impacts of ocean acidification through research and interdisciplinary partnerships.

Can he do that? It’s not clear. But President Trump is right when he says that pennies “literally cost us more than 2 cents.”