Antarctica has a very fragile environment. Pollution should be avoided if at all possible. Expeditions should anticipate the need to remove all waste from the continent when they leave. Waste disposal and sewage facilities on the continent are severely limited and restricted to permanent installations. Of particular concern to tourists is the danger of introducing foreign organisms into the fragile Antarctic environment. Many tour operators will require visitors to do a boot wash after every landing to avoid carrying seeds or other items from one location to another. In addition, visitors should examine all clothing prior to embarking to avoid bringing any plant or animal material to the Antarctic; invasive species have devastated many regions of the planet, so it is particularly important to protect Antarctica from this danger.
The International Association of Antarctica Tour Operators (IAATO) is a voluntary organization of tour operators which promotes safe and environmentally responsible tourism in Antarctica. It publishes standards for member tour operators on responsible practices for private visitors to Antarctica.