Our planet is nestled in the center of two doughnut-shaped regions of powerful, dynamic radiation: the Van Allen belts, where high-energy particles are trapped by Earth’s magnetic field. Depending on incoming radiation from the sun, they can gain or lose energetic particles. Learn more: http://go.nasa.gov/2dfpiHs Watch: http://go.nasa.gov/2dDnNFf | NASA - National Aeronautics and Space Administration

8.8K views · 366 reactions | Scientists attribute global warming to the human expansion of the "greenhouse effect" — warming that results when the atmosphere traps heat radiating from Earth toward space: https://climate.nasa.gov/causes/ | NASA Climate Change | Facebook