Air pollution levels on Bonfire Night were up to four times the daytime level, scientists have said following a major urban study.
Bessie, a three-year-old Jack Russell, is joining the fight to help students with their mental health.
Scientists have developed a test which can predict whether a melanoma is unlikely to spread or could return.
Students must be told about the risks of taking part in initiation ceremonies at university, according to new advice.
New technology could be used to protect marine life from pollution by locating and retrieving lost nets and fishing gear which can drift around the oceans for years.