It comes as no surprise that the dim choose the unclear.
Far off, we hope, is the day when you can stand upon the sea front and comment, "Ach, there's not a breath of tide today!"
The science and the business of Carbon Capture are making great strides. In addition to a recent proposal to convert CO2 into gypsum and fertiliser via sea-water - that I cannot find the web-link for - there is this...
http://biorecro.com/?page=news
Maybe such news will pop-up here...
http://www.ucl.ac.uk/cclp/index.php