There are a lot of things going on in the world aimed at reducing our carbon footprint. A lot of these are quite negative, don't do this, tax that, etc. but some boffins have come up with an ingenius idea.
They are going to use a giant kite to help power ships around the world. I'd call it a sail, but they are the scientists! It is a great way of using old school technologies with new technological developments to help the world, congrats!