EIP-1559 aims to reduce the inflation of the Ethereum ecosystem. Inflation has incentivized users to make transactions and create volume on chain for over 5 years. Issuance per block started at 5 Ether, was reduced to 3, and then further reduced to 2 for the current rate. This gradual decrease has made the supply of Ethereum disinflationary (similar to bitcoin) as the supply is still increasing, but slower than it previously was. EIP-1559 aims to further this disinflationary system and potentially even make it deflationary. Currently, all fees that are used in a transaction are paid to miners to validate the block. This will change in mid July as the fee structure is updated.