What we can actually do to save the planet

Lenton argues self-reinforcing "positive tipping points" in EVs, solar, and steel could enable rapid decarbonization within roughly 30 years.

• Norway's EV tipping point: Battery-electric cars went from 338 sold in 2010 to roughly 98% market share within about 15 years, sparked by activists including A-ha's Morten Harkett lobbying for tax waivers.
• Self-reinforcing adoption dynamics: Lenton says positive tipping points occur when enough adopters trigger economies of scale, cheaper batteries, better range, and more charging infrastructure, making the new tech the obvious choice.

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