Chemtrails or chemical trails are sprayings of chemicals from planes that is happening just about everywhere to control the weather. Some believe other chemicals are being dropped as well. You can read the articles in the links below and watch the full length documentary and decide for yourself.
Seaweed protects you from radiation poisoning and the poisons dropped on us from chemtrails. That is my number one choice but there are other suggestions in the 2nd link below. The 3rd link contains the full length move, WHAT IN THE WORLD ARE THEY SPRAYING? Very scary to watch if you know nothing about chemtrails.
Chemtrails: A Planetary Catastrophe Created by Geo-Engineering
Chemtrails: Learn how to protect yourself from these treacherous poisons
What in the World are They Spraying?