Some Kaua‘i residents are growing increasingly concerned over what they call ‘chemtrails’ in the sky, suspecting aircraft of spraying potentially harmful chemicals over populated areas. They have been tracking these trails, disseminating information and generating discussion online at kauaisky.blogspot.com. Government agencies assert that ‘persistent contrails,’ line-shaped clouds composed of ice particles, pose no direct threat to public health but may contribute to human-induced climate change.
