President Biden and the European Union on Friday announced new plans to enable Europe to become less dependent on Russian oil and gas. But for now, the Russian invasion has opened up much larger questions over our dependence on fossil fuels and the need to develop cleaner renewable energy. Science correspondent Miles O'Brien reports on how and why geothermal energy is attracting new interest. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders