Our planet is misnamed. With 71 percent of it underwater, what we call Earth is really a water planet. For us earthlings, who can only thrive on land, that’s a problem, one compounded by our inability to live where it’s too cold, hot, dry or wet for us.
Like Goldilocks and her porridge, humans only want things "just right." Many believe our growing species needs more land—to live, farm and survive. One way is to coax that arable land from Earth's lapping lakes and vast oceans.
In fact, we’ve been doing just that kind of geo-engineering for a long time. With dredged sand, rock and aggregates by the millions of tons, our species has been creating artificial islands for centuries.