| Subject | English | Catalan |
| environ. | drift net fishing The use of fishing nets of great length and depth, aptly described as "walls of death" because of the huge numbers of marine mammals, birds, and turtles that became ensnared in them. The Tarawa Declaration of 1989 formulated at the 20th South Pacific Forum, aimed at banning drift netting in the South Pacific. In June 1992 the UN banned drift netting in all the world's oceans | pesca de xarxa de deriva |
| math. | net correlation | correlació parcial |
| environ. | net resource depletion The total decrease in the amount of natural materials available for use by humans and other living beings | reducció neta de recursos |
| environ. | netting policy All emission sources in the same area that are owned or controlled by a single company are treated as one large source, thereby allowing flexibility in controlling individual sources in order to meet a single emissions standard; emissions trading | política de xarxa (negociació d'emissions) |