Most popular audiences today recognize the 1960s Sexual Revolution, but historians consider the early 1900s as the first American sexual revolution that created the groundwork for future social change.
New research examines how vertebrate species in the eastern United States ranging from snakes to mammals to birds responded to climate change over the last 500,000 years. The study, recently published in the journal Ecology ...
Paris has temporarily barred half of all cars from traveling on city streets and made public transportation free for the day as it battles a peak in pollution.
Thomas Edison's door key to the 19th century lab in New Jersey where he invented the phonograph goes up for auction this weekend, along with lightbulbs he perfected.
The world's big cities will need $375 billion of investment to curb climate change, a large gathering of mayors heard in Mexico on Thursday.