To spread awareness that “climate change isn’t just an environmental issue; it’s a human story woven into the fabric of our civilization’s rise and fall,” Georgetown University historian Professor ...

Our species likes it cold. Homo sapiens evolved in — and still inhabits — one of Earth’s rare and fragile ice ages, periods distinguished not by an abundance of saber-toothed cats and woolly mammoths ...

Deep in the world's oldest forests, towering giants have been keeping detailed records for centuries. These ancient trees are far more than passive observers of time. Trees act as time capsules. The ...

Earth is surrounded by an immense magnetic field, called the magnetosphere. Generated by powerful, dynamic forces at the center of our world, our magnetosphere shields us from erosion of our ...

An ice core sample from the European Alps has been the first to be dated to the last Ice Age, providing vital historical environmental data stretching back across the last 12,000 years. The discovery ...

Smithsonian researcher Ingrid Romero studies fossil pollen to reconstruct ancient climates and predict future changes Erin Wunderlich Researcher Ingrid Romero holds a case full of pollen slides at the ...

At the edge of East Antarctica, where the wind howls through a white emptiness and the air bites harder than steel, scientists uncovered something so old it makes even time feel young. Beneath that ...

Foreword: Climate change and the uses of history / by Paul S. Sutter -- Introduction: Making climate change history -- Part 1. The scientific "prehistory" of global warming. "General remarks on the ...

Humans have been recording the weather for thousands of years. Antarctic ice, however, has been at it for over a million. An international team of scientists has extracted a 1.74-mile-long (2.8 ...

Climate history recorded in a calcite deposit in a southern Nevada cave indicates that the hot, arid southwestern United States experienced significant shifts in temperature and rainfall over the last ...