The effects of tear gas on the body include difficulty breathing, burning eyes, and rashes. Long-term effects may include blindness and respiratory failure. Learn more.

The effects of laughing gas typically wear off within a few minutes. Children might be given 100% oxygen after the nitrous oxide mask is removed. The oxygen helps them to fully recover within minutes.

The most commonly used form of tear gas is 2-chlorobenzalmalononitrile (CS gas). It was first discovered by two American scientists in 1928 and the U.S. Army adopted it for controlling riots in 1959.

Americans love their gas stoves, but they pollute homes and are connected to a supply system that leaks methane. That's part of a battle as more people face a decision about switching to electric.

According to experts, tear gas isn’t exactly what you think it is – and it does, in fact, have the potential to have a dangerous and long-lasting effect on children. Tear gas is more than an ...