Climate change is affecting how these harp seal pups live.

Warmer temperatures are becoming increasingly threatening to the survival of harp seal pups.

T.J. Holmes gets up close to harp seal pups, which rely on the ice floes around Prince Edward Island.

National Geographic and “GMA” take a close look at the stunning ice floe where harp seals have their pups 100 miles north of Prince Edward Island.

ABC News chief meteorologist Ginger Zee is exploring 20 of the world's most beautiful and vulnerable places to understand how our changing climate is affecting the planet.

As our planet changes, so do the falls, which can affect wildlife and nearby villages.

As environmental threats increase, conservation efforts are helping protect sea turtles in Nicaragua, where their numbers are dwindling because of human threats.

Many coffee drinkers don't think twice about where their coffee comes from, but it's a process that often starts in Nicaragua, where climate whiplash has been affecting production.

National Geographic and “GMA” teamed up to explore Masaya Volcano in Nicaragua, one of only eight of these lakes on the entire planet, and share a rare close-up view.

In the countdown to the 50th anniversary of Earth Day, "GMA" and our partner Nat Geo present "Extraordinary Earth: 20 in 2020."

In the countdown to the 50th anniversary of Earth Day, "GMA" and our partner National Geographic present "Extraordinary Earth: 20 in 2020."

During "Extraordinary Earth: 20 in 2020," we will visit 20 amazing places around the globe and dive into ways that we can help the environment.