Ships are enormous polluters, and companies are looking to wind as a viable method of propulsion to cut fuel use and achieve a more sustainable future.
and cruise lines, are significant polluters, burning tons of fossil fuels to move goods worldwide. There are potential solutions on the way, however, as
Sails have powered ships for thousands of years, and a heavily modified version of the configuration could help large freight ships reduce their reliance on fossil fuels. Food and agricultural giant Cargill is using a sail-powered cargo ship that reduces fuel burn by 1.5 tons per day and overall usage by 30 percent. The sails weigh a whopping 125 tons, but the ship’s 82,000-ton capacity easily swallows the extra weight.
Ships equipped with sails still need fuel for navigating harbors and moving when there’s no wind, but the system could cut as much as 4.65 tons of carbon dioxide emission per ship. That said, we’re a long way from widespread adoption. As thenoted, only 30 of the 60,000 cargo ships currently on the oceans are using sail power.
That said, the industry is on an upward track when it comes to wind power. Estimates peg the number of wind-powered ships to reach almost 11,000 by the end of the decade, and most countries have pledged to pursue emissions-free shipping by 2050. But, like some parts of the rapidly electrifying automotive industry, not everyone agrees on how to get there.. The fuels are expensive and require energy to produce, though that comes mainly from wind and solar.
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