As the third most important greenhouse gas (GHG) after CO 2 and methane, tropospheric
ozone (O 3) is also an air pollutant causing damage to human health and ecosystems. This …

Elevated concentrations of atmospheric bromine are known to cause ozone depletion in the
Arctic, which is most frequently observed during springtime. We implement a detailed …

Sea ice plays a pivotal role in Earth's climate and its past reconstruction is crucial to
investigate the connections and feedbacks with the other components of the climate system …

Every polar spring, phenomena called bromine explosions occur over sea ice. These
bromine explosions comprise photochemical heterogeneous chain reactions that release …

Ice wedges are a characteristic ground ice feature in permafrost regions that form primarily
from the meltwater of the seasonal snowpack. Ice‐wedge oxygen and hydrogen stable …

We evaluate the effects of rapidly changing Arctic sea ice conditions on sea salt aerosols
(SSA) produced by oceanic wave‐breaking and the sublimation of wind‐lofted salty blowing …

During polar spring, periods of elevated tropospheric bromine drive near complete removal
of surface ozone. These events impact the tropospheric oxidative capacity and are an area …

While the dominant role of halogens in Arctic ozone loss during spring has been widely
studied in the last decades, the impact of sea-ice halogens on surface ozone abundance …

Variability in sea ice is a critical climate feedback, yet the seasonal behavior of Southern
Hemisphere sea ice and climate across multiple timescales remains unclear. Here, we …

Reactive halogens play a prominent role in the atmospheric chemistry of the Arctic during
springtime. Field measurements and modeling studies suggest that halogens are emitted …