:00:00. > :00:14.Hi, I'm Ricky, with your morning Newsround. Coming up: I'm here in
:00:15. > :00:16.Portsmouth to find out more about the role of the Royal Navy in World
:00:17. > :00:21.War I. Jose Mourinho had this to say about
:00:22. > :00:27.last night's Chelsea performance: it was a joke.
:00:28. > :00:30.But first to those high levels of air pollution we told you about
:00:31. > :00:33.yesterday. The government has issued another warning this morning after
:00:34. > :00:38.some parts of England reached the highest levels on the government's
:00:39. > :00:40.air quality scale. Forecasters say parts of northwest England, the
:00:41. > :00:44.Midlands, north Wales and southwest Scotland will also be hit today.
:00:45. > :00:47.There's more info about where the pollution is coming from over on the
:00:48. > :00:51.Newsround website. Today sees two brand new major
:00:52. > :00:56.exhibits open at the Royal Navy's National Museum in Portsmouth. They
:00:57. > :01:01.include the huge gun that fired the first British shot of World War I,
:01:02. > :01:05.on the 5th of August, 1914. In the Great War over 43,000 from the Royal
:01:06. > :01:16.Navy died at sea. Ayshah's at the museum for us this morning.
:01:17. > :01:21.I am here standing in front of the gun you were talking about. It is
:01:22. > :01:25.absolutely huge. It took six people to fire that gun at sea. Joining me
:01:26. > :01:30.is that you rate of the museum. Matthew, can you tell us a little
:01:31. > :01:34.bit about what life was like on board at that time?
:01:35. > :01:40.I think it was pretty tough. View were working that gun, you were on
:01:41. > :01:43.deck, you had the sea breaking on you, you had people firing at you,
:01:44. > :01:48.but you also lived in a very small space. You could your hammock next
:01:49. > :01:52.40 other men in very small space. Was tough.
:01:53. > :01:55.What were some of the personal stories of some of the men on
:01:56. > :01:59.board? We have the story of the 14-year-old
:02:00. > :02:05.who served at sea, there was a Royal Marine who when he joined up was
:02:06. > :02:10.just four feet. About the same height as me! Why is
:02:11. > :02:14.it so important to learn about World War I and the impact it had? It's
:02:15. > :02:18.important because it involved millions of people and hundreds of
:02:19. > :02:21.thousands of people died. It is interesting to look back from
:02:22. > :02:27.where we are today and think about how different our lives are today.
:02:28. > :02:31.Thank you, Matthew. You can find out more about the role of the Navy in
:02:32. > :02:34.World War I on the newsround website.
:02:35. > :02:38.This morning you've been telling us that you think politicians should be
:02:39. > :02:41.better role models for kids. It comes after the Prime Minister David
:02:42. > :02:43.Cameron and the Leader of the Opposition Ed Miliband traded
:02:44. > :02:47.insults in Parliament during Prime minister's questions. First, Ed
:02:48. > :02:51.Miliband called David Cameron a dunce - which means stupid. Then,
:02:52. > :02:57.the Prime Minister called the leader of the Labour party a muppet.
:02:58. > :03:00.So this has really got you guys talking this morning, Clair thinks
:03:01. > :03:03.both parties need to come to agreements quicker and with no
:03:04. > :03:16.screaming and shouting. And Stella says it's poor behaviour.
:03:17. > :03:21.Next, an exciting discovery in Saudi Arabia suggests that the scorching
:03:22. > :03:27.hot deserts there used to be covered in lush grassy land, where large
:03:28. > :03:31.animals roamed. A team of scientists have dug up a huge tusk that's
:03:32. > :03:39.300,000 years old. Here's the BBC's Frank Gardner to explain more.
:03:40. > :03:45.When you think of the Arabian Desert you think of the sun, sheet, wind,
:03:46. > :03:51.and nothing but dust. It didn't used to be like that. A team from Oxford
:03:52. > :03:53.together with Saudi Arabian scientists have been digging under
:03:54. > :03:58.the sand and found a massive elephant task from over 300,000
:03:59. > :04:04.years ago, and it is beside and right ugly. They reckon at that time
:04:05. > :04:09.much of Arabia was covered in lush grass and almost jungle. And there
:04:10. > :04:15.were probably herds of wild animals roaming around their long before it
:04:16. > :04:19.turned into a desert. This is changing the way everyone thinks
:04:20. > :04:23.about climate change. It wasn't always desert, used to be something
:04:24. > :04:26.different, and early man had stone tools because they were living
:04:27. > :04:29.alongside these animals. Chelsea have their work cut out if
:04:30. > :04:33.they want to remain in the Champions League after losing 3-1 in the first
:04:34. > :04:36.leg of their quarter final against Paris St Germain. The French side
:04:37. > :04:40.went 1-nil up after just four minutes, and this goal in injury
:04:41. > :04:43.time by Javier Pastore secured their victory. Eden Hazard did score a
:04:44. > :04:47.precious away goal for Chelsea but the Blues will have a mountain to
:04:48. > :04:53.climb in next Tuesday's return leg. That's all from me, Newsround's back
:04:54. > :04:59.this afternoon. There's more information on the website,
:05:00. > :05:00.including the dad who gave his son's home videos some very special