This document discusses Pay4Climate, a web3 carbon removal paytech solution. It notes that since 1850, 2,500 gigatons of CO2 have been emitted by human activity. Pay4Climate's goal is to finance the removal of 1 megaton of CO2 annually by 2028 and 1 gigaton annually by 2050. It provides a technological process and coaching process for companies to purchase carbon dioxide removals and showcase their impact through a widget on their website. The document lists several major companies already investing in carbon removal and provides an example of Pay4Climate partnering with a project to preserve one of the world's largest natural carbon sinks.