Greenpeace seeks the phase out of all F-gases, which present a growing threat to the environment. Greenpeace is not against the development of alternatives, but until our concerns about HFOs can be proven to be unfounded, the precautionary principle should prevail. Safer, cheaper and readily available alternatives already exist for all applications, and given this fact, we favour the deployment of natural refrigerant and oppose the continuing dependence on synthetic refrigerants.