Pacific Ocean Dwarfs Land—and Is Quietly Shrinking
The Pacific Ocean is so vast it can swallow all Earth’s land (land area ~149 million sq km) with water to spare, with ocean-area estimates around 155–165 million sq km. A leftover water-free area of roughly 16 million sq km remains—larger than Russia. The ocean covers about two-thirds of the planet’s surface and, despite its enormity, is relatively shallow; through subduction the Pacific is slowly shrinking while the Atlantic widens, reminding us that Earth’s blue appearance is a dynamic, not fixed, fact. A common analogy even suggests Earth’s water would form a tiny sphere inside a ping-pong ball, underscoring how little of the planet is actually water relative to its size.