The bottom line on sustainable shipping: Can the shipping industry reach zero emissions?

If the international shipping sector were a country, it would be the sixth largest CO2 emitting nation in the world. Every year, 11 billion tons of goods - about 80% of all the goods we use or consume - reach us by ship, emitting nearly a billion tons of CO2 into the atmosphere in the process. And, about 40% of those goods - nearly 4.5 billion tons - are fossil fuels.Unlike switching to renewable energy and electric road vehicles, there is not an obvious short-term economic benefit to decarbo...