The number of trees on Earth has almost halved since the beginning of human civilisation, a new assessment has found. There are more than three trillion trees worldwide - around eight times more than ...

Theatre companies have up to now often shied away from tackling environmental issues, but this year’s Dublin Theatre Festival has not one, but two shows focusing on the biodiversity and climate crises ...

The new theory marks a U-turn in scientific thinking. Previously it was assumed humans only began to stand upright after moving out of the forests onto the wide open savannahs of east Africa. Moving ...