Illegal fishing is being monitored from space. Global Fishing Watch, a non profit organisation, uses information from a variety of tracking sources to work out which boat is which, where they are and what they're doing. There is a definite feeling of spring in the air - and fields - as early lambing is underway. We visit a lambing shed in Gloucestershire. And there are calls for farmers - and consumers - to do more to tackle air pollution. Figures released this week by DEFRA show 87% of ammonia emissions in 2021 came from agriculture - mainly from the spreading of manures, slurries and fertilisers. Ammonia by itself can damage sensitive habitats, but when it mixes with other gases in the atmosphere, like nitrogen oxides and sulphur dioxide, it can also form particulate matter, which can cause health problems when breathed in. Presented by Charlotte Smith Produced for BBC Audio in Bristol by Heather Simons