Showing results for: Deforestation
This commentary argues that the recent imposition of trade tariffs between China and the United States could lead to increased tropical deforestation as other suppliers make up for the 50% fall in exports of soybeans from the US to China seen during 2018.
Around 15% of the carbon dioxide emissions from food consumption in the European Union are due to deforestation, according to this paper, which traces the links between final consumers and the expansion of agriculture (including both crops and pasture) and tree plantations into tropical forests. Depending on the model used, 29% to 39% of tropical deforestation emissions were attributed to the production of goods for export.
In this research on the Brazilian Amazon, FCRN member Erasmus zu Ermgassen of UCLouvain finds that forest conservation and agricultural growth are not mutually exclusive, and sheds new light on the land sparing/sharing debate. The authors argue that enforcement of Brazil's forest laws is key to encouraging the efficient use of land and the sustainable development of the agricultural sector.
The 2019 Green Alliance Annual Debate discusses the ways in which earth observation and data science can improve our understanding of and ability to address environmental issues - for example, monitoring deforestation or water levels in reservoirs in real time through satellite images.
According to this paper, 23% of deforestation in Indonesia between 2001 and 2016 was caused by palm oil plantations, 20% by conversion of forests to grasslands or shrublands (including conversion caused by fire), 15% by small-scale agriculture, 14% by timber plantations, and the remainder due to other causes including logging roads, mining and fish ponds.
FCRN member Danilo Pezo has contributed to this synthesis paper, which is based on the Programme on Forests‘ project Leveraging Agricultural Value Chains to Enhance Tropical Tree Cover and Slow Deforestation.
Bolsonaro, the new far-right president of Brazil, has given the Agriculture Ministry responsibility for “identification, delimitation, demarcation and registration of lands traditionally occupied by indigenous people”, according to Reuters. Environmentalists are concerned that the Amazon rainforest will be opened to greater commercial exploitation.
This paper presents maps of global land use change from 1992 to 2015, showing net increases in the area of agriculture, grassland and settlement, and net losses in the area of forest, wetland, shrubland, sparse land, bare land and water.
6.5–15.4 million hectares of private land in Brazil could become legally available for deforestation, because expansion in the land area designated as conservation units or indigenous reserves could trigger a legal mechanism whereby the area of legal reserves for native vegetation may be decreased.
WWF’s 2018 Living Planet Report finds that population sizes of thousands of vertebrate species have declined by 60%, on average, between 1970 and 2014, land degradation seriously impacts 75% of terrestrial ecosystems, and current species extinction rates are 100 to 1000 times higher than the background rate. The report attributes these impacts to rising demand for land, water and energy, and explores the impacts of agriculture, fisheries and deforestation.
The current front-runner for Brazil’s presidency, Jair Bolsonaro, member of the right-wing Social Liberal Party, proposes to abolish Brazil’s ministry of environment, hand control of agricultural policies to politicians who advocate reducing land conservation and expanding agricultural lands, withdraw Brazil from the Paris Agreement on climate change, and open indigenous lands to mining.
27% of global deforestation since 2001 has been caused by permanent land use change for producing commodities (such as beef, soy and palm oil), according to a recent paper. The researchers used satellite imagery to assess 10 km by 10 km grid cells across the globe and categorised each cell by likely forest disturbance type: commodity production, shifting agriculture, managed forestry, wildfire, or urbanisation.
The University of East Anglia’s Global Environmental Justice Group is running a five-week online course on “Environmental Justice”, hosted on the Future Learn website. Several food-relevant topics will be covered, including water justice, forest governance, biodiversity conservation, and climate justice.
The Global Partnership on Forest and Landscape Restoration’s report “Restoring forests and landscapes: the key to a sustainable future” presents case studies of the successful restoration of landscapes that have been affected by deforestation and land degradation.
Managing tropical forest conservation on the basis of maximising carbon storage might not protect the most biodiverse regions of forest, according to a recent paper. Using datasets from Brazil, the authors found that the correlation between biodiversity and levels of carbon stored in forests depended on whether and how the forest had been disturbed by human activity.
A recent paper assesses the carbon implications of converting Indonesian rainforests to oil palm monocultures, rubber monocultures or rubber agroforestry systems (known as “jungle rubber”). It finds that carbon losses are greatest from oil palm plantations and lowest from jungle rubber systems, in all cases being mainly from loss of aboveground carbon stocks. The paper points out that, “Thorough assessments of land-use impacts on resources such as biodiversity, nutrients, and water must complement this synthesis on C but are still not available.”