This discrepancy is a flashing warning light for US national security. The Arctic sea ice is thinning, its shipping lanes are ...
Large changes in global sea level, fueled by fluctuations in ice sheet growth and decay, occurred throughout the last ice age ...
Hippos from Central Europe were assumed to have gone extinct around 115,000 years ago when the temperate conditions of the ...
In the late winter of 1979, a group of gold miners working near Fairbanks, Alaska, broke through the frozen soil with a ...