Methane (CH4) is produced in many natural systems that are vulnerable to change under a
warming climate, yet current CH4 budgets, as well as future shifts in CH4 emissions, have …

In this Perspective, we put forward an integrative framework to improve estimates of land-
atmosphere carbon exchange based on the accumulation of carbon in the landscape as …

Groundwater comprises 95% of the liquid fresh water on Earth and contains a diverse mix of
dissolved organic matter (DOM) molecules which play a significant role in the global carbon …

Key observational indicators of climate change in the Arctic, most spanning a 47 year period
(1971–2017) demonstrate fundamental changes among nine key elements of the Arctic …

Trillions of plastic fragments are afloat at sea, yet they represent only 1–2% of the plastics
entering the ocean annually. The fate of the missing plastic and its impact on marine life …

Globally, inland waters receive a significant but ill‐defined quantity of terrestrial carbon (C).
When summed, the contemporary estimates for the three possible fates of C in inland waters …

Northern ecosystems are experiencing some of the most dramatic impacts of global change
on Earth. Rising temperatures, hydrological intensification, changes in atmospheric acid …

Dissolved organic matter (DOM) is recognized for its importance in freshwater ecosystems,
but historical reliance on DOM quantity rather than indicators of DOM composition has led to …

The Arctic is a water-rich region, with freshwater systems covering about 16% of the northern
permafrost landscape. Permafrost thaw creates new freshwater ecosystems, while at the …

Biodegradable dissolved organic carbon (BDOC) constitutes the most labile fraction of
dissolved organic matter (DOM), which also functions as a source of CO 2 emissions from …