Regenerative agriculture and carbon removal-focused startup CarbonZero.Eco, founded by 16-year old Harper Moss, announced that it has raised $3.5 million, with proceeds aimed at supporting its biochar-based projects to remove CO2 from the atmosphere while improving crop yields for farmers. Based in Silicon Valley, CarbonZero.Eco was launched by Moss, reportedly driven by a “passion to make a positive impact on…