Excessive nitrate in surface waters deteriorates the water quality and threatens human health. Human activities have caused increased nitrate concentrations in global surface waters over the past 50 years. An assessment of the long-term trajectory of surface-water nitrate...
Since the launch of the Green Revolution (GR) in Indian agriculture in the 1960s, Indian food production has successfully become self-sufficient but this has also led to increasing soil nitrogen (N) surpluses and various negative environmental impacts, such as NH3 emissions....
Fertiliser and pesticide application can cause extensive environmental damage. We use the water quality footprint to express nitrogen, phosphorus and glyphosate emissions from agriculture in volumes of water needed to virtually dilute pollution and apply the approach to...
China has experienced rapid population growth and increasing human N and P discharge from point sources. This paper presents a new spatial and temporal model-based, province-scale inventory of N and P in wastewater using detailed information on the location and functioning of...
Nitrous oxide (N2O) is a long-lived greenhouse gas and currently contributes ∼10% to global greenhouse warming. Studies have suggested that inland waters are a large and growing global N2O source, but whether, how, where, when, and why inland-water N2O emissions changed in...
The increasing application of synthetic fertilizer has tripled nitrogen (N) inputs over the 20th century. N enrichment decreases water quality and threatens aquatic species such as fish through eutrophication and toxicity. However, the impacts of N on freshwater ecosystems...
Harmful algal blooms (HABs) have been increasing in frequency, areal extent and duration due to the large increase in nutrient inputs from land-based sources to coastal seas, and cause significant economic losses.
Based on a meta-analysis of 1,521 worldwide field observations, 11 key measures were identified that reduce global nitrogen losses from croplands to air and water by 30–70%, while increasing crop yield by 10–30%. The global cost of mitigation measures are 20 billion US$, and...
Excessive agricultural nitrogen use causes environmental problems globally, to an extent that it has been suggested that a safe planetary boundary has been exceeded.
This paper analyses options to halve nitrogen losses to the environment by 2030, which is a target of the Farm to EU Fork Strategy. We found that a combination of interventions to (a) increase farm level nitrogen use efficiencies, (b) reduce food waste and (c) a dietary shift...
