Calm solar cycle prompts questions about impact on Earth

The surface of the sun has been surprisingly calm of late -- with fewer sunspots than anytime in the last century -- prompting curious scientists to wonder just what it might mean here on Earth.

1800`s industrial soot in Europe blamed for glacial retreat

A NASA-led team of scientists has found proof that soot from a rapidly industrializing Europe caused the abrupt retreat of mountain glaciers in the European Alps that began in the 1860s.

Antarctic penguins thrived during Little Ice Age

Penguin populations in Antarctica surged during the Little Ice Age - a cold period between 1500 and 1800 AD, a new study suggests.

400-year-old `Ice Age` plants brought back to life

Plants that were frozen during the "Little Ice Age" centuries ago are sprouting new growth, a group of scientists from the University of Alberta have revealed.

Volcanoes may have triggered `Little Ice Age`

A mysterious cool spell which lasted into the late 19th century and dubbed Little Ice Age appears to have been caused by a series of volcanic eruptions and sustained by sea ice, a new study has suggested.