The Arctic region is a harbinger of global change and is warming at a rate higher than the
global average. While Arctic warming is driven by increases in anthropogenic greenhouse …

Recent research on atmospheric ammonia has made good progress in quantifying
sources/sinks and environmental impacts. This paper reviews the achievements and places …

We report a new synthesis of best estimates of the inputs of fixed nitrogen to the world ocean
via atmospheric deposition and compare this to fluvial inputs and dinitrogen fixation. We …

The global nitrogen (N) cycle at the beginning of the 21st century has been shown to be
strongly influenced by the inputs of reactive nitrogen (N r) from human activities, including …

Motivated by the need to predict how the Arctic atmosphere will change in a warming world,
this article summarizes recent advances made by the research consortium NETCARE …

Existing descriptions of bi-directional ammonia (NH3) land–atmosphere exchange
incorporate temperature and moisture controls, and are beginning to be used in regional …

The oceans contribute significantly to the global emissions of a number of atmospherically
important volatile gases, notably those containing sulfur, nitrogen and halogens. Such gases …

The budget of reactive nitrogen (Nr; oxidized and reduced inorganic and organic forms of
nitrogen) has at least doubled since the preindustrial era due to human activities. Excess Nr …

The ocean-atmosphere flux of a gas can be calculated from its measured or estimated
concentration gradient across the air-sea interface and the transfer velocity (a term …

Current global inventories of ammonia emissions identify the ocean as the largest natural
source. This source depends on seawater pH, temperature, and the concentration of total …