Ever wanted to go on an ocean liner? Cruise ship advertisements idealise the high life to be had on the high seas. What they never say is how much ships pollute. The average ship runs on low grade oil, which can be likened to a sludge that emits more particulate matter than a million cars; more sulfur than seven million cars. And that’s just one cruise liner!
Several Scandinavian ferries now run on hybrid diesel-electric systems but, as in most advances in electric propulsion these days, China is taking the lead, as a cargo ship with a 2.4 MWh battery pack launches in Guangdong. Ironically, the ship will be used to transport dirty coal!
Car makers have a problem. They don’t admit it yet. Or maybe they do admit it to themselves, although not in public. Why should they, when enough people are buying bigger cars? Global car sales in 2017 were close to 90 million vehicles in all categories, including SUVs and light trucks. That’s roughly 1 car for every 77 people. Less than 1% of these were electric. How many more cars do we need? Car companies are powerful entities that are in the business of selling dreams; dreams of freedom, of the joy of the open road, dreams of independence. The irony is that as we buy into the dream, we destroy the very foundation on which our dreams are based.