So not voting in elections from your municipal level, up, is your choice to opt out of deciding what happens to the world’s resources, then.
UN delegations who put ideas on the table are formed by regular people from around the globe. Nations, including their governments at all levels, can opt in or not, to listening to those collective voices being brought forward. People do vote on who is raising those collective concerns -or not - and honouring, or not, the voices brought forward when resolutions are made by the UN.