Earth, our ocean-dominated world, stores away a vast majority of the planet's accumulating heat in the seas.
In fact, over 90 percent of the planet's rising warmth — specifically trapped by human-created greenhouse gas emissions — is absorbed by the deep, salty waters.
For the last half-century, scientists have worked to put a more precise number on just how much heat the oceans take up each year, and for good reason: More heat absorption might provide evidence that our pale blue dot is increasingly sensitive to the heat-trapping carbon amassing in our atmosphere — which is likely at its highest levels in 15 million years.
