Stone Age humans mastered fire technology during Earth’s harshest climate period 23,000 years ago, creating hearths that reached temperatures of 600°C—comparable to modern campfires. Despite theories ...

Large changes in global sea level, fueled by fluctuations in ice sheet growth and decay, occurred throughout the last ice age ...

Climate change is actually nothing new to our old planet. It has long driven the evolution of Earth's flora and fauna and good thing, too: Without those major shifts, we wouldn't be here today. But as ...