The Arctic is the "frontline" for climate change, scientists said. If there is any doubt about climate change, look no further than the coldest regions of the planet for proof that the planet is ...

The Arctic Ocean, once locked in a vault of thick, old ice, now is transforming at lightspeed. Temperatures there are ...

For decades, scientists believed the Arctic Ocean was sealed under a massive slab of ice during the coldest ice ages — but new research proves otherwise. Sediment samples from the seafloor, paired ...