just before we go, a young marine scientist from mauritius is taking her environmental message to new depths. shaama sandoya dove into a remote stretch of the indian ocean, to highlight the importance of seagrass ecosystems. the under—water plant has become a priority for conservationists. it represents a tenth of the ocean's capacity to store carbon. shaama is trying to draw attention to the un's goal of protecting at least 30% of the planet's land and oceans by 2030. a reminder of our top story: america's top diplomat antony blinken is meeting his opposite number from china, against the snowy backdrop of alaska. but in their opening remarks, the two sides haven't pulled their punches. mr blinken said the us would not shy away from issues such as xinjiang, hong kong and taiwan. we'll bring you loads of updates, and more on our website. thanks for watching. hello there. we saw plenty of sunshine across scotland on thursday. that pushed temperatures up to 19 celsius in edinburgh, making it the warmest day of the year so far. for most, though, it was rather cool and cloudy, and that's