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.

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Planting a trillion trees will not halt climate change

A group of 46 scientists from around the world, led by Joseph Veldman, Ph.D., assistant professor in the Department of Ecosystem Science and Management in the College of Agriculture and Life Sciences at Texas A&M University, are urging caution regarding plans to address climate change through massive tree planting.

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