Ancient peat bogs are turning out to be some of the sharpest climate historians on Earth, preserving a near-continuous record ...

While polar bears are a big tourist draw, the Arctic has a wealth of wildlife to observe and terrains to explore ...

The single reason Churchill is so famous is for its polar bears. Each fall, hundreds and hundreds of polar bears congregate ...

By wiping out the environmental guardrails, Congress reopened one of the planet’s last great wilderness regions to oil and ...

The term tipping point provides a useful way of thinking about that theoretical juncture along any path when the possible ...

Here are seven incredible rail adventures where the journey itself becomes a moving portrait of our planet’s diverse climates ...