World View |
Featured
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Article |
Increased carbon footprint of materials production driven by rise in investments
Investment in capital formation between 1995 and 2015 has driven a 120% increase in the greenhouse gas emissions from material production, according to a multiregional input–output model of the global economy.
- Edgar G. Hertwich
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Comment |
Govern CO2 removal from the ground up
Scientists and policymakers must acknowledge that carbon dioxide removal can be small in scale and still be relevant for climate policy, that it will primarily emerge ‘bottom up’, and that different methods have different governance needs.
- Rob Bellamy
- & Oliver Geden
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Editorial |
Pervasive plastic
Human manipulation of hydrocarbons — as fuel and raw materials for modern society — has changed our world and the indelible imprint we will leave in the rock record. Plastics alone have permeated our lives and every corner of our planet.
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News & Views |
Metal footprint linked to economy
The annual quantity of metal being used by humans has been on the rise. A new analysis of 43 major economies reveals the extent to which year-to-year fluctuations in metal footprints have been in lockstep with countries’ economic growth and changes in investment spending.
- Paul J. Burke
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Article |
High sensitivity of metal footprint to national GDP in part explained by capital formation
A country’s metal footprint increases by 2% for every 1% increase in gross capital formation, according to a metal footprint quantification and panel analysis of 43 economies during 1995–2013.
- Xinzhu Zheng
- , Ranran Wang
- & Edgar G. Hertwich
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Correspondence |
Biodiversity loss from deep-sea mining
- C. L. Van Dover
- , J. A. Ardron
- & P. P. E. Weaver
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Letter |
A climate signal in exhumation patterns revealed by porphyry copper deposits
Porphyry copper deposits are emplaced at a fixed crustal depth in convergent tectonic settings. The age and distribution of deposits exposed at the surface suggest that mountain exhumation is influenced by precipitation rates.
- Brian J. Yanites
- & Stephen E. Kesler
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Editorial |
Expanding boundaries of exploration
Mineral exploration is pushing new frontiers. Given a poor track record on land, mining practises should be honed on home soil before venturing into the oceans.
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Commentary |
Road map to mineral supply
Access to metals and minerals is restricted mostly by geopolitical constraints, and not by a shortage of mineable deposits. In the face of rising demand, a full inventory of these commodities — in the Earth's crust as well as in recyclable waste — is urgently required.
- Richard Herrington
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Commentary |
Metals for a low-carbon society
Renewable energy requires infrastructures built with metals whose extraction requires more and more energy. More mining is unavoidable, but increased recycling, substitution and careful design of new high-tech devices will help meet the growing demand.
- Olivier Vidal
- , Bruno Goffé
- & Nicholas Arndt
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Editorial |
Copper versus culture
Mining could provide a steady stream of income for Afghanistan. But the mere promise of a stable economy does not justify all sacrifices.
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Letter |
Deforestation driven by urban population growth and agricultural trade in the twenty-first century
Reducing tropical deforestation is at present considered a cost-effective option for mitigating climate change. Satellite-based estimates of forest loss suggest that urban population growth and urban and international demand for agricultural products are key drivers of deforestation in the tropics.
- Ruth S. DeFries
- , Thomas Rudel
- & Matthew Hansen