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Renewable energy is not so green as it looks like

Scientists state on the fact that if we want to keep global temperature rise below 1.5 degrees Celsius, we’ll need to rely on renewable energy, electric vehicles (EV) and battery storage. But creating that infrastructure will dramatically increase our need for metals like cobalt and lithium. A recent report, released this week by the Institute for Sustainable Futures, University of Technology, Sydney, cautions that a spike in demand for those and other metals could drain the planet’s reserves and lead to dire social and environmental consequences.

The situation is especially urgent for the EV and battery industries, according to the researchers from the Institute for Sustainable Futures. Those industries are the main drivers of demand for cobalt, with each EV requiring between five to 10 kilograms of the metal for its lithium-ion batteries. As much as 60 percent of cobalt comes from the Democratic Republic of Congo, which has already been charged with using child labor in its mines.

The researchers looked at a total of 14 metals, including those used in solar panels and wind turbines. They estimate that converting to 100 percent renewable energy could increase demand for lithium and nickel by as much as 280 percent and 136 percent, respectively. As Grist reports, the rush to meet that demand would likely increase mining in countries with lax environmental and safety regulations.

Due to the report, recycling is our best bet to reduce primary demand. Companies like Apple and Amazon are already working to develop closed-loop recycling systems, but that will only get us so far. Green policy for each country of the world is required to make fundamental changes.