Our planet is more than four billion years old – a staggering amount of time for humans to contemplate. To ease this task, experts have divided earth’s history into pieces of time, called aeons, eras, ...

The article on carbon offsets (“Resetting the market”, Big Read, September 1) covered some of the problems with offsets but not the one that will be most important for the climate, and for our ...

Humanity's impact on the planet is so profound that we're creating a new geological time period, say geologists. They have named the age we're making, the Anthropocene. Show more Humanity’s impact on ...

Darwin brought several small journals on his voyage on the Beagle. Later he transferred the observations and thoughts from his journals to a larger document that he published under the title The ...