Garsdale Head

"Temperatures in Britain will soar to nearly 21C later this week despite parts of the country having seen lows of -7C since the Easter bank holiday heat wave."

A UK study has found that some species of seabirds are developing immunity to avian influenza, which has caused significant mortalities in wild bird populations and poses a threat to human health.

Ben Rich looks back at a month in which an air frost has been seen somewhere in the UK every single morning. In fact, provisional data from the Met Office suggests it has been the frostiest April for at least 60 years - with the lowest average minimum temperatures since 1922.