Casper Labuschagne

TL;DR: It is estimated that the Southern Ocean sink of CO2 has weakened between 1981 and 2004 by 0.08 petagrams of carbon per year per decade relative to the trend expected from the large increase in atmospheric CO2.

TL;DR: The isotopic evidence presented in this article suggests that the methane rise was dominated by significant increases in biogenic methane emissions, particularly in the tropics, for example, from expansion of tropical wetlands in years with strongly positive rainfall anomalies or emissions from increased agricultural sources such as ruminants and rice paddies.

TL;DR: A clear gradient of Hg concentrations between the Northern and Southern hemispheres is confirmed, confirming that the gradient observed is mostly driven by local and regional sources, which can be anthropogenic, natural or a combination of both.

TL;DR: In this article, the role of vegetation uptake by vegetation as an alternative mechanism for driving seasonal variations of atmospheric Hg(0) seasonality has been investigated using satellite data, and it was found that the photosynthetic activity of vegetation correlates with Hg (0) levels at individual sites and across continents.

TL;DR: In this article, surface ozone records from ten polar research stations were investigated for the dependencies of ozone on radiative processes, snow-photochemisty, and synoptic and stratospheric transport.