This tech takes polluting cargo ship exhaust and buries it in the ocean

A CalTech spinoff uses limestone to tackle carbon dioxide in shipping exhaust. The shipping company Lomar will soon begin testing the process.

The thousands of cargo ships that are used to deliver everything from your next pair of jeans to your car emit around a billion metric tons of CO2 each year. Cleaner shipping fuel and innovations like modern sails will take time to scale up. One startup is working on a solution that could tackle the problem faster. The company, called Calcerea,...