Abstract. Riparian countries have their respective values and priorities for water
management, and their values of shared water have fundamental impacts for
their propensity to be involved in cooperative management and adhere to
treaties/agreements. However, there is limited understanding of the
changing values and interests of each riparian country. Taking the
Lancang–Mekong River basin as a case study, this paper aims to analyse the
evolution of water conflict and cooperation dynamics from the perspectives
of multiple countries. Newspaper articles were used as the key data source
as they provide insights into events reported on by the media that are
representative of each country/sector they are published within. The results
depict a trend of cooperative sentiments towards water events occurring
within the region. The six riparian countries (China, Myanmar, Laos,
Thailand, Cambodia, and Vietnam) had a greater average sentiment score
(0.5) for cooperation than international countries (0.16) for the majority
of the study period. The trend also shows that countries further downstream
showed lower cooperative sentiments, except for Vietnam (China 0.86, Myanmar
0.58, Laos 0.46, Thailand 0.34, Cambodia 0.13, Vietnam 0.91). Dam
infrastructure was often negatively reported (60 % of negatively reported
articles), which is therefore a major contributor to conflict for the
Lancang–Mekong River basin. Events that are positively reported are those
that aid in connecting leaders and project developers between riparian
countries including meetings, bilateral and multilateral cooperation, and
development projects. These findings provide the basis for further revealing
the mechanism of cooperation and conflicts as well as more proactively
managing cooperation and conflict in the Lancang–Mekong River basin and beyond.