Major report warns society is waging a 'war on nature' and calls for all-society push to combat escalating planetary emergency
Organisers of this weekend's global event urge participants to mark Earth Hour online as global pandemic continues to escalate
UNEP warns 1.5C global warming target could be out of reach by 2030 unless nations urgently step up climate action
Andersen takes up the role following Erik Solheim's resignation last year