Plan to refreeze Arctic sea ice shows promise in first tests Field trials ... These trees aren't the first such finding researchers have unearthed from Rocky mountain ice patches.

Melting ice has revealed an ancient pine forest in the Rocky Mountains in the United States. The trees, which date back almost 6000 years, were found 600 feet (183 metres) above the current tree ...

Trees dating back almost 6000 years have come to scientists' attention due to ice melting in the Rocky mountains, offering a "time capsule" into the past ...