Fossil Fuel

Shuttering Fossil Fuel Power Plants May Cost Less Than Expected

Decarbonizing U.S. electricity production will require both construction of renewable energy sources and retirement of power plants now operated by fossil fuels. A generator-level model described in the December 4 issue of the journal Science suggests that most fossil fuel power plants could complete normal lifespans and still close by 2035 because so many facilities are nearing the end of their operational lives.

Fossil Fuel-Free Jet Propulsion with Air Plasmas

Humans depend on fossil fuels as their primary energy source, especially in transportation. However, fossil fuels are both unsustainable and unsafe, serving as the largest source of greenhouse gas emissions. Researchers in China have demonstrated a prototype device that uses microwave air plasmas for jet propulsion, generating the high-temperature, high-pressure plasma in situ using only injected air and electricity. They describe the engine in AIP Advances.