Compared to what its traversing, next to nothing.
If you could eliminate the biggest CO2 producer in the world, would you?
The fact that you see the freighter and are oblivious to the ocean shows the power of propaganda.
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Well.. starting with sail vs engines in shipping... ones faster, more reliable, resistant to the vagaries of weather. The other is cheaper. When married up, wind power, supplementing engines, reduces costs. Is it for use 100% of the time? Nope. Does it work? Yup. Lotsa documentation on the web. And, I've sailed most of my life... yer not liable to convince me that wind is a dead end...
Lastly, building and operating ONE VLCC slaps a heluva lot bigger hit on the carbon footprint than an entire freaking forest of 'windmills'. Run one of them VLCC's onto a sandbar, tell me what the 'footprint' looks like then? VLCC's are built in Korea. 'Windmills' are coming outta GE in Wisconsin. The oil she's carrying was already paid for by tax dollars... who the hell guards the Straights of Hormuz? How many billion a year does that cost? The profits, pumped into an Arab Princes pocket, goes to schooling an entire generation of madras-programed jihadists..
... and yer upset about the view? LOL... I imagine the visible proof of America's Pride and Power and proof against all threats is ugly... like a battleship, or aircraft carrier. And, like San Francisoo "Not in My Harbor", enh?
Bullpuckey.
Every time I see a 'windmill' I see evidence of alternative energy being utilized... another barrel of saudi crap not coming ashore here. You may not like the look of a windmill... but I'd rather have 50 of 'em in view off my coast than one stinking drilling platform. You'll get to look at yours in Texas, I'll get to look at mine here off Long Island.
Frankly, given the choice of eyeballing a windmill vs eyeballing a nuke or coal fired plant... I'll take a windmill farm.
As fer propaganda... well, I wonder who's the sucker?
Hang