The tourists stopped to spread picnic blankets at a scenic point overlooking the picturesque lake of Lough Tay in Ireland’s Wicklow Mountains. But the four scientists trekked on, climbing toward the ...

Seattle’s geography resulted from an ice sheet that scoured the landscape 16,000 years ago. From the hills and ridges that all run north to south to the huge freshwater lakes that define the region, ...

The Earth’s climate is a dynamic entity, continuously evolving over billions of years with alternating periods of extreme heat and cold. Recent scientific studies indicate that the Earth is subtly ...