来自矿的生物质碳排放对气候行动有重大影响
Evelyn M Mervine1,2, Rick K Valenta3, James S Paterson4
1School of GeoSciences, The University of Edinburgh, Edinburgh, United Kingdom. e.mervine@uq.edu.au.
Nature communications
|January 8, 2025
概括
从矿开采中产生的生物质碳排放往往被忽视,这大大增加了产品的环境足迹. 对这些排放的核算对于可持续采购和气候行动至关重要.
科学领域:
- 环境科学 环境科学
- 气候科学 气候科学
- 可持续的采矿 可持续的采矿
背景情况:
- 全球需求预计到2050年将增加一倍,这是由低碳技术和可再生能源推动的.
- 在可持续性报告和采购决策中,从尼克尔采矿的植被清理中产生的生物质碳排放经常被遗漏.
研究的目的:
- 量化采矿生物质碳排放的影响.
- 强调低估了与生产及其下游产品 (如电池) 相关的环境影响.
主要方法:
- 来自481个矿和未开发矿床的汇编数据.
- 分析了各种矿场的生物质损失和相关的碳排放.
主要成果:
- 矿开采的环境足迹可能比以前报告的4至500倍大,这取决于矿山.
- 来自生物质损失的未计入碳排放量很大,通常与从开采和加工中产生的范围1和范围2排放量相当.
- 在不同的矿场中观察到生物质损失的巨大差异.
结论:
- 目前对对环境的影响的评估,包括对电池的影响,被低估了.
- 对生物质损失排放的准确报告对于采购的知情决策至关重要.
- 整合生物质碳排放是通过可持续矿产采购实现有效气候行动的关键.
相关概念视频
Precipitation Gravimetry
5.2K
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
5.2K
Bioremediation
18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K
Environmental Applications of Microorganisms
1
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
1
What is Climate?
18.3K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.3K
Threats to Biodiversity
22.1K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
22.1K
The Carbon Cycle
37.0K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
37.0K


