The term net-zero refers to one of the many ways in which we can state an emissions reduction goal. Net-zero is usually applied to all greenhouse gases, but can be used alongside carbon-neutral, to mean an end goal in which the emissions we release are balanced by the amount of emissions we can remove from the atmosphere. Reducing all emissions to zero (gross) is extremely difficult technically and financially, so this allows for some residual emissions to be addressed.

How they are addressed can come in three principle ways: capturing and storing emissions from the air/production; sequestration in plants and soils; and finally, offsetting, by usually paying into carbon reducing schemes or products elsewhere (with all the attendant risks that presents).