More than 11,000 scientists have declared the world faces a climate emergency, while Australia has been named as among the many countries not doing enough to limit warming.
Drug cartel gunmen have ambushed three SUVs along a dirt road, slaughtering six children and three women - all US citizens living in northern Mexico - in a grisly attack that left one vehicle a burned-out, bullet-riddled hulk, authorities say.
A new wearable bike helmet-style brain scanner system could make scans easier and more reliable in children, researchers say.
Just 30 minutes of exercise per day can help beat depression - even in people with a family history of the condition, research suggests.
A US man is among three prisoners who staged a violent escape from a courthouse in the eastern town of Pattaya in Thailand.