Electric Vehicles and Biodiversity: The Real Impacts, Good and Bad

Biodiversity — the variety of life in an ecosystem — is affected by almost everything we build. Electric vehicles are no exception. Being honest about the impacts is the best way to reduce them, so this article covers both sides.

The negatives: mining and land

• Lithium brine extraction in the 'lithium triangle' of Chile, Argentina and Bolivia uses large amounts of water in some of the driest places on Earth, affecting wetlands, flamingo habitats and local communities.
• Hard-rock lithium, nickel and cobalt mines clear land, and nickel mining in tropical regions such as Indonesia has driven deforestation.
• Cobalt mining in the Democratic Republic of Congo raises serious human-rights and environmental concerns, which is why carmakers are cutting cobalt content and auditing supply chains.
• Processing minerals produces tailings and chemical waste that must be managed to protect rivers and soil.

The positives: what EVs replace

It is easy to forget that the fossil-fuel system EVs replace has an enormous, ongoing biodiversity footprint of its own. Oil and gas extraction drives deforestation, spills and habitat loss across the Amazon, the Niger Delta, the Arctic and the world's oceans; refineries and pipelines fragment habitats; and climate change itself is now one of the largest threats to species worldwide. Crucially, fuel must be extracted continuously for the life of the car, whereas battery minerals are mined once and can be recycled.

Reducing the harm

• Chemistries such as LFP need no cobalt or nickel, and sodium-ion cells need no lithium.
• Recycling recovers most battery metals, reducing new mining over time.
• Direct lithium extraction and better brine management cut water use.
• Supply-chain standards (such as the EU battery passport and responsible-mining certifications) push miners toward better practice.
• As buyers, choosing right-sized batteries, keeping cars longer and supporting public transport, cycling and shared mobility all reduce the number of batteries the world needs.

The most biodiversity-friendly kilometre is the one not driven. EVs are a much better car — but walking, cycling and public transport still beat any car.