5 Can the World Run Entirely on Green Energy?

While the world races toward a cleaner energy future, we face a dual challenge: we must build entirely new systems while dealing with the polluting facilities left behind by a century of unregulated fossil fuel extraction. Can modern innovations scale up fast enough to replace oil and gas while we actively clean up our historical carbon footprint?

In this episode, we explore how communities and global industries are navigating the transition to a low-carbon world. From Upstate New York, where workers are capping thousands of abandoned wells leaking highly potent methane gas, to the edge of the Sahara Desert, where over 7,000 mirrors store solar energy in molten salt, the solutions are diverse. We also look at Burlington, Vermont, which has successfully demonstrated that a city can run on 100% renewable electricity by combining hydro, wind, solar, and local wood residue biomass.

• Hundreds of thousands of legacy oil and gas wells across the United States continue to leak methane, a gas far more potent than carbon dioxide, making well-capping a critical priority for rapid climate action.
• To stay aligned with the Paris Agreement goal of limiting warming to 1.5°C, the International Energy Agency states that global renewable capacity must triple by 2030.
• Solar and wind systems have reached an economic turning point where they are now cheaper than coal and natural gas in the majority of countries.
• The aviation industry is exceptionally difficult to decarbonize because battery physics cannot support flight, requiring a massive scale-up of sustainable aviation fuel made from agricultural residue and cooking oil.
• Novel storage technologies, such as Finland's commercial sand battery that retains heat up to 500°C, are helping to close the gap when the sun is not shining or the wind is not blowing.

A notable contextual insight from our discussion is that energy security has joined climate mitigation as a primary driver for governments to accelerate their transition to renewable power. Rather than relying on cash subsidies, policymakers are increasingly focusing on providing stable regulatory frameworks that allow green technologies to thrive.

As we look at these diverse global efforts, how can your local community establish a tangible goal to begin utilizing its own regional renewable resources?