Yes - the current conservative president organized a referendum which would have allowed him to change it, but it got rejected:

https://constitutionnet.org/news/voices/peoples-verdict-why-...

> in the months leading up to the referendum, the government and several pro-government public figures and political commentators openly criticized the 2008 Constitution, particularly its recognition of Nature as a subject of rights, emphasizing that no other constitution in the world contains such a provision.