A Brazilian company called Nemus is using proceeds acquired by selling NFTs to preserve the Amazon rainforest.
The company, that owns 410 square kilometers (158 square miles) of forest, is granting buyers unique sponsorship of different sized tracts.
Its founder Flavio de Meira Penna said token holders will not own the land itself, but will have access to key information about its preservation, from satellite imagery to licensing and other documentation.