Andrew Blaustein on Earth’s disappearing amphibians

"We are undergoing unprecedented extinctions right now where many populations of amphibians throughout the world are disappearing," said Andrew Blaustein.

Russell Schnell explains importance of monitoring Earth’s air

Russell Schnell said that if countries set requirements to cut carbon dioxide emissions, NOAA's observatories would serve as a kind of atmospheric fact checker.

Does Earth’s atmosphere lose molecules to space?

Earth's atmosphere is constantly moving, spurred on by energizing sunlight, and some move quickly enough to escape the grip of Earth's gravity.

Why don’t tree branches grow straight up?

Tree branches provide a way for tree leaves to act as a net for sunlight.

Africa vulnerable to abrupt climate change

"In Africa we have a special concern about abrupt climate change," said atmospheric scientist Kerry Cook, "because we know from the records of past climate that it’s possible for climate to change abruptly in this region."

Climate models can help restore Everglades

Dr Lall discusses how climate models can be used to save the Florida Everglades, North America’s largest wetland.

Role of science in our changing climate

Science will be needed to devise ways to use energy more efficiently to help our climate, and shift to energy sources such as wind, solar, and others.

Water vapor has role in global warming

It's correct that water vapor is the most important greenhouse gas, says Dessler, but "it's not correct to think that therefore carbon dioxide is not important."

Cats: How long have lived with humans?

Cats and people are depicted together in Egyptian art from nearly 4,000 years ago - but the human-cat relationship may go much farther back.

Plastics in ocean biodegrade slowly

He pointed out that plastics have been around for less than 100 years. In that short time span, no group of microorganisms has evolved that is capable of biodegrading plastics.