carbon cycle

This tag is associated with 3 posts

Oceans absorb more carbon with weaker ocean circulation

A team of researchers investigate why the ocean has been absorbing more carbon from the atmosphere in recent decades, and find ocean circulation could be responsible.

Caption: The graph above shows signals (peaks) produced when PAHs are related compounds are detected using a gas-chromatograph/mass spectrometer (GC/MS). The red line shows the peaks found when researchers only looked for 64 known PAHs, and the blue line also includes all of the related compounds in the sample that the researchers didn’t specifically target. Source: Gonzalez-Gaya et al., Nature Geoscience 2016.

Beyond CO2: Chemical Consequences of Our Love Affair with Fossil Fuels

Our world relies heavily on the burning of biological materials such as wood or fossil fuels to harness energy. While we all know that carbon dioxide (CO2) is a harmful byproduct of burning fuel, it’s not the only chemical formed during this process. These chemical byproducts may play a bigger and more complex role in the chemistry of our world than we had previously thought. In this study, researchers traveled the world collecting air and water samples from three different ocean basins to learn more about the unknown chemical consequences of burning fossil fuels on a massive scale.


Coral Reefs Suffering from Ocean Acidification

Researchers investigated natural trends in carbonate chemistry of the Davies Reef flat in the central Great Barrier Reef on diel and seasonal timescales. They found the reef flat is below a calcification threshold, which implies that a transition in the reef may occur from a state of net calcification to dissolution, around 26.9% of the time during the summer and 14.1% of the time in the winter.

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