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Blue: Top picks
Skyryse — $1.1 billion: This semi-automated flight operating system, founded in 2016, last raised a $300 million Series C. It has raised more than $540 million in funding from investors like Autopilot Ventures, Fidelity and Venrock, according to Pitchbook.
Though it sounds perverse, the event was part of a scientific experiment that could advance a technology to combat both global heating and ocean acidification. Ocean alkalinity enhancement (OAE), as the approach is called, acts like natural weathering, but on human – rather than geological – timescales.