Societal decisions about climate mitigation will have dramatic impacts on eutrophication in the 21st century.
Nat Commun
; 10(1): 939, 2019 02 26.
Article
in En
| MEDLINE
| ID: mdl-30808880
ABSTRACT
Excessive nitrogen runoff leads to degraded water quality, harming human and ecosystem health. We examine the impact of changes in land use and land management for six combinations of socioeconomic pathways and climate outcomes, and find that societal choices will substantially impact riverine total nitrogen loading (+54% to -7%) for the continental United States by the end of the century. Regional impacts will be even larger. Increased loading is possible for both high emission and low emission pathways, due to increased food and biofuel demand, respectively. Some pathways, however, suggest that limiting climate change and eutrophication can be achieved concurrently. Precipitation changes will further exacerbate loading, resulting in a net increase of 1 to 68%. Globally, increases in cropland area and agricultural intensification will likely impact vast portions of Asia. Societal and climate trends must therefore both be considered in designing strategies for managing inland and coastal water quality.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Eutrophication
Type of study:
Prognostic_studies
Aspects:
Equity_inequality
Limits:
Humans
Country/Region as subject:
America do norte
/
Asia
Language:
En
Journal:
Nat Commun
Journal subject:
BIOLOGIA
/
CIENCIA
Year:
2019
Document type:
Article
Affiliation country:
United States