Startups like Equatic and Climeworks develop ways to remove carbon dioxide from the atmosphere.Carbon removal technologies help businesses meet ESG goals and offset emissions.Equatic's sea electrolysis process removes carbon dioxide from the atmosphere.Equatic engineers make carbon removal measurable and publish their findings in scientific research papers.Equatic is developing the world's largest ocean-based carbon removal plant in Singapore.Climeworks uses direct air capture technology to remove CO2 from the air and store it underground.The carbon credits market is highly unregulated, with some ventures not reducing emissions as claimed.Critics of carbon credits argue that it allows businesses to continue polluting.The biggest hurdle for carbon removal startups is cost.Climeworks expands into offering portfolio of other options if CO2 removal method is too expensive.