Guardian: Radar beams that irritate bats could be used to prevent the animals from being diced by the spinning blades of wind turbines, according to a study of how the animals react to radar signals. The researchers discovered that a stationary beam reduced bat activity near the turbines by almost 40%. Bat and bird populations can be significantly effected by collisions with turbines. A six-week study at two wind farms in the US recorded more than 4,500 bat deaths and the Peñascal wind farm in …