Since 1984, nearly 1,000 people have been killed in the Brazilian Amazon due to land conflicts stemming from unequal distribution of land, land tenure insecurity, and lawlessness. During this same period, the region experienced almost complete deforestation (< 8% forest cover by 2010). Land conflict exacts a human toll, but it also affects agents' decisions about land use, the subject of this article. Using a property-level panel dataset covering the period of redemocratization in Brazil (1984) until the privatization of long-term leases in the Eastern Amazon (2010), we show that deforestation is affected by land conflict, particularly in cases of expropriation of property for agrarian reform settlement formation and when that conflict involves fatalities. Deforestation on agrarian reform settlements is much greater when soils are poor for agriculture and when the land has been the object of past conflict. Deforestation and conflict are episodic, and both agronomic drivers and contentious drivers of land change are active in the region. Ultimately, the outcome of these processes of contentious and agronomic land change is substantial deforestation, regardless of who was in possession and control of the land.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6984708 | PMC |
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0227378 | PLOS |
Cien Saude Colet
January 2025
Departamento de Saúde Coletiva, Laboratório de Saúde Ambiente e Trabalho do Instituto Aggeu Magalhães (Fiocruz/IAM). Av. Professor Moraes Rego s/n, Cidade Universitária. 50740-465 Recife PE Brasil.
The study analyzed the socio-environmental determination of health in five sugarcane-producing municipalities in Pernambuco. This participatory, qualitative research was conducted from January to August 2022. Workshops were held in the participating communities to build the Participatory Rural Diagnosis of protective and destructive processes of global, community, and individual socio-environmental health dimensions.
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January 2025
Department of Physics and Technology, University of Bergen, Allegaten 55, Bergen 5007, Norway.
The polar bear () is the only Arctic land mammal that dives into water to hunt. Despite thermal insulation provided by blubber and fur layers and low Arctic temperatures, their fur is typically observed to be free of ice. This study investigates the anti-icing properties of polar bear fur.
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January 2025
NOAA/National Ocean Service, Silver Spring, MD, USA.
Coastal vertical land motion (VLM), including uplift and subsidence, can greatly alter relative sea level projections and flood mitigations plans. Yet, current projection frameworks, such as the IPCC Sixth Assessment Report, often underestimate VLM by relying on regional linear estimates. Using high-resolution (90-meter) satellite data from 2015 to 2023, we provide local VLM estimates for California and assess their contribution to sea level rise both now and in future.
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January 2025
Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China.
Ice core measurements reveal dipole-like snow accumulation trends over West Antarctica throughout the 20th century, with an increase of >2000 billion metric tons over the Antarctic Peninsula and Ellsworth Land but a decrease of ~500 billion metric tons over Marie Byrd Land. Although atmospheric teleconnections were frequently revealed, linking variability between tropics and higher latitudes on interannual and decadal timescales, centennial-scale teleconnection is absent from literature. Here, using statistical analysis and numerical experiments, we reveal that changes of tropical oceans throughout the 20th century drive the long-term Antarctic snowfall trend.
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January 2025
Industrieverband Agrar e. V. (IVA), Wissenschaft und Innovation, Frankfurt am Main, Germany.
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