Throughout human evolution, multiple versions of humans co-existed. Could we be mid-upgrade now?

Dateline investigates the increase in cancer cases in rural China

The best marriage proposal ever!

Some of the magic moments of filming

the basic mathematics that show worrying limitations on our sustainable energy options

through Chile and Patagonia

baby koala is referred to as a joey and is hairless, blind, and earless.

Claire Hope Cummings talks about seeds

stretched to breaking point, with a waste problem that's out of control.

a part of the Maldives that tourists do not see - a huge island waste dump.

Have we used up all our resources? Have we filled up all the livable space on Earth?

marine microbes provide half the oxygen we breathe

James Hansen tells the story of his involvement in the science of and debate over global climate change.

hidden secrets of the planet's dominant life form: the virus

Hunting of Polar Bears for Profit NRDC video

Many researchers are convinced that water is capable of "memory"

A deepstaria enigmatica jellyfish.

The changing borders of Europe 1000 AD to Present.

A time-lapse of Planet Earth, created from images produced by the geostationary Electro-L Weather Satellite

Lethal Sounds - The use of military sonar poses a deadly threat to whales and other marine mammals.

Throughout human evolution, multiple versions of humans co-existed. Could we be mid-upgrade now?

Dateline investigates the increase in cancer cases in rural China

The best marriage proposal ever!

Some of the magic moments of filming

the basic mathematics that show worrying limitations on our sustainable energy options

through Chile and Patagonia

baby koala is referred to as a joey and is hairless, blind, and earless.

Claire Hope Cummings talks about seeds

stretched to breaking point, with a waste problem that's out of control.

a part of the Maldives that tourists do not see - a huge island waste dump.

Have we used up all our resources? Have we filled up all the livable space on Earth?

marine microbes provide half the oxygen we breathe

James Hansen tells the story of his involvement in the science of and debate over global climate change.

hidden secrets of the planet's dominant life form: the virus

Hunting of Polar Bears for Profit NRDC video

Many researchers are convinced that water is capable of "memory"

A deepstaria enigmatica jellyfish.

The changing borders of Europe 1000 AD to Present.

A time-lapse of Planet Earth, created from images produced by the geostationary Electro-L Weather Satellite

Lethal Sounds - The use of military sonar poses a deadly threat to whales and other marine mammals.