Nature Positive Role of the Mining and Metals Sector
Page 26 of 73 · WEF_Nature_Positive_Role_of_the_Mining_and_Metals_Sector.pdf
of water per kilogram of ore (m3/kg), whereas
cobalt, copper and nickel use 0.03-0.06 m3/kg, and
iron requires 0.001 m3/kg.137
Water use across a range of upstream input
industries is also material, including the energy,
chemicals, construction machinery, heavy trucks
and rubber sectors.138
Overall, mining accounts for 2-4.5% of global
freshwater use139 and can have a significant impact
on water resources at a local and regional level,140
both directly and cumulatively. As a result, water
abstraction creates competition for water availability
with local industries and communities, which can
lead to displacement or conflict. The impacts
of mining on nature and people are magnified
where ore deposits lie in arid places – the World
Resources Institute (WRI) found that 16% of critical
mineral mines, deposits and districts are in highly
water-stressed areas, and in these locations, at
least 40% of water supply is required to meet
existing demand each year. For example, in Chile’s
Salar de Atacama, part of the “lithium triangle” in
Latin America, which contains 60% global lithium
supply,141 lithium and copper extraction have
reportedly already consumed over 65% of the local water supply, and operations are expanding at a
rate of 7% per year.142,143
The reduction in the availability of local freshwater
can put company operations at risk. Water basins
in China, the US, Australia and Russia emerge
as the highest risk globally.144 Mining companies
are starting to make progress towards improving
water stewardship by completing water footprint
assessments, setting contextual targets and taking
actions such as increasing water recycling and
using alternative water sources, like greywater or
seawater. For example, Anglo American aim to
reduce freshwater withdrawal by 50% in water-
scarce areas from 2015 to 2030.145 Similarly,
Teck Resources plans to design all development
projects in water-scarce regions with a seawater or
low-quality water source from 2025 and transition
to seawater or low-quality water sources for all
operations by 2040.146
Pressure to improve water stewardship is growing.
Regulators are increasingly introducing requirements
for businesses to safeguard the availability of
freshwater, such as in Mexico, where new laws
require companies to bid for water allocation and
submit monthly water consumption reports.147
2.5 Greenhouse gas emissions
The mining and metals sector is responsible for
2-3% of global GHG emissions.148 This share can
rise significantly in countries where the mining sector
represents a large part of the economy.149 Emissions
intensity can vary by region, commodity and across
mines, depending on power sources, production
pathways and operational practices.150 For example,
within copper and iron ore, there is a twentyfold
variation in the emissions intensity of mines.151
Within mining operations today, 40-50% of Scope
1 and 2 carbon dioxide (CO2) emissions come
from diesel used in mobile equipment, and another
30-35% come from the use of non-renewable
electricity.152 Following this, the next main source
of emissions is comminution, given the energy
required to crush ores before processing.153
Iron and steel production is responsible for
an additional 7% of global GHG emissions.154
Emissions are primarily generated by energy-
intensive processes, such as smelting, and the use
of coke coal as a reductant in steel production. It
takes approximately 770 kg of coal to make one ton
of steel.155 Looking across the value chain, transport
is also a major emissions driver, particularly as
international shipping accounts for 2% of global emissions156 and mined commodities make up over
20% of global maritime trade.157
The sector is already taking action to tackle its
emissions, engaging in both climate mitigation and
adaptation. Companies and industry associations
are setting and making progress towards emissions
reduction targets. For example, ICMM members
have committed to net-zero Scope 1 and 2 GHG
emissions by 2050 or sooner, while accelerating
action to address Scope 3 emissions.158 Individual
companies have gone further, including Rio Tinto, who
have committed to reducing Scope 1 and 2 emissions
by 50% by 2030.159 The Minerals Council of Australia
have also identified 30 actions in their 2020 Climate
Action Plan and reported that member companies
had reduced their Scope 1 and 2 emissions by 4.7%
between 2021 and 2022.160 Similarly, over 40 World
Steel Association members have committed to nine
principles as part of their Sustainability Charter. More
broadly, members responsible for over 50% of global
crude steel production report data on sustainability
indicators each year to support the monitoring and
reporting of industry performance.161 Given emissions
are spread across the value chain, collaborative
action with suppliers and customers is essential to
achieving Scope 1, 2 and 3 emissions reductions. In Chile’s Salar
de Atacama,
lithium and copper
extraction have
reportedly already
consumed over
65% of the local
water supply, and
operations are
expanding at a rate
of 7% per year.
Nature Positive: Role of the Mining and Metals Sector 26
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