The Antarctic ice sheet has advanced and retreated over the past 10,000 years. It holds stark warnings, and possibly some hope, for the future.
A rare fossil tooth discovery has shed light on an extinct group of seals from Australia’s deep past.
The fires in the Amazon are already a major threat to the environment, and a potentially bigger disaster awaits below the ground. Could we reach the tipping point for climate change?
Today, the Gregorian calendar is virtually universally accepted for everyday secular use, but its origin stretches back more than 6000 years.
Will the icy wilderness we know today survive, or will it succumb to climate change and human pressure? Our choices over the coming decade will seal its fate.
Stirring controversy can lead to a reinforcement of deep-seated values, and hinder progress.
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