EnvironmentThis stunning map shows why everyone is fighting over the ArcticThe environmentally damaging melting of polar ice is also exposing minerals, archaeological wonders and even ice volcanoes and there's a race to get to themFeatures
HumansLong lost cities in the Amazon were once home to millions of people We used to think the Amazon rainforest was virtually untouched, but it now seems to have been filled with sprawling settlements whose inhabitants shaped the land Features