High on a windswept Nevada mountainside in the 1960s, a young researcher set out to read the history of climate written in ...

Hidden high in California’s White Mountains, a solitary bristlecone pine has survived nearly 5,000 years. Guarded in secrecy, it holds climate secrets that stretch back to early civilisation.

In 1964, graduate student Donald Rusk Currey asked for permission to cut down a tree growing on Wheeler Peak in Nevada's Great Basin National Park. Though there are different accounts on the ...