:00:16. > :00:20.direct peace talks with the Taliban. After more than a decade of war
:00:20. > :00:26.costing thousands of lives, the US announces the first step on a long
:00:26. > :00:31.road to peace. The news comes as NATO troops hand over control of the
:00:31. > :00:37.country's security for the first time to Afghan forces. We don't
:00:37. > :00:41.anticipate this process will be easy or quick, but we must pursue it in
:00:41. > :00:44.parallel with our military approach.
:00:44. > :00:49.We will be looking at the prospects of success in the talks that are due
:00:49. > :00:54.to start within days. Also tonight: At the G8 Summit,
:00:54. > :00:59.leaders agree more aid for Syrian refugees, but there is no agreement
:00:59. > :01:04.on President Assad's fate. As campaigners call for tougher
:01:04. > :01:08.rules on tax evasion, the G8 leaders agree new global action.
:01:08. > :01:12.Ministers claim fundamental progress in blocking images of child sexual
:01:12. > :01:16.abuse online after talks with the internet companies.
:01:16. > :01:22.And what is happening to the weather? We report on the latest
:01:22. > :01:26.debate among the experts. Later in the hour on BBC News, I
:01:26. > :01:29.will be few would sport today as the British and Irish Lions lose on tour
:01:29. > :01:39.for the first time, just four days before they face Australia in the
:01:39. > :01:57.
:01:57. > :02:00.in Afghanistan, costing thousands of lives and billions of pounds, the
:02:00. > :02:04.Americans are to start direct talks with the Taliban. The White House
:02:04. > :02:08.called it the first step on a long road to peace. The process was
:02:08. > :02:17.announced on the day the Afghan government took full control of
:02:17. > :02:23.security in the country, as David Each of the past 12 years, the
:02:23. > :02:26.Afghan war has cost those nations fighting it around �20 billion. Then
:02:26. > :02:33.there is the cost in lives lost, tens of thousands of Afghans, and
:02:33. > :02:38.3000 dead foreign troops. But as foreign forces closed down bases to
:02:38. > :02:40.go home, the uneasy truth is that, far from being defeated, the Taliban
:02:40. > :02:45.are still fighting and is now claiming political legitimacy by
:02:45. > :02:52.opening an office in the Gulf and still calling themselves by the name
:02:53. > :02:55.they did when they were in Afghanistan. We want good relations
:02:55. > :03:02.with all countries of the world, including the neighbouring
:03:02. > :03:07.countries. The opening of the Taliban office upstaged a ceremonial
:03:07. > :03:13.event in Kabul to mark the formal handover of Afghan security from
:03:13. > :03:16.NATO to the Afghan government, an historic moment for Afghanistan, but
:03:16. > :03:22.President Karzai found himself talking about the old enemy.
:03:22. > :03:26.principles are that the talks must bring about an end to violence in
:03:26. > :03:30.Afghanistan. In Afghanistan there is fear among human rights activists
:03:30. > :03:35.that there may be too many concessions made to the Taliban on
:03:35. > :03:39.women's rights or education in return for peace, but nothing will
:03:39. > :03:47.happen fast. We do not anticipate this process will be easy or quick,
:03:47. > :03:51.but we must pursue it in parallel with our military approach, and we
:03:51. > :03:55.will in the meantime remain fully committed to our military efforts to
:03:55. > :04:01.defeat Al-Qaeda and support the Afghan national security forces.
:04:02. > :04:04.There have been 444 British dead, almost all of them killed between
:04:04. > :04:10.2006 and 2012 in Helmand. Politicians and military leaders
:04:10. > :04:14.agree that it is time to talk. have long argued that we need to
:04:14. > :04:17.match the security response in Afghanistan where our troops do
:04:18. > :04:21.fantastically important work and where the programme of handing over
:04:21. > :04:25.to the Afghan national-security forces is on track, we have to match
:04:25. > :04:29.that with a political process to try to make sure that as many people as
:04:29. > :04:34.possible give up violence, give up armed struggle. There has been no
:04:34. > :04:38.call for a seized by, the war will not end with these talks, but these
:04:38. > :04:42.talks could end the war. -- these fire. This could mark the beginning
:04:42. > :04:47.of the end of Afghanistan's long torment.
:04:47. > :04:57.As Britain's long and dusty campaign draws to a close, it might be some
:04:57. > :04:59.
:04:59. > :05:04.time before we can say whether it affairs editor John Simpson, John,
:05:04. > :05:11.how do you see the prospects of success in these talks? Everybody is
:05:11. > :05:16.talking about a long time, it will take a good deal of time. I mean,
:05:16. > :05:21.the phrases are just endless. About the length of talks, if they
:05:21. > :05:26.actually do start properly and continue. Apart from anything else,
:05:26. > :05:33.who are the Taliban? You know, they are such a diverse group, with no
:05:33. > :05:39.kind of clear structure, military or political structure. It is not like
:05:39. > :05:42.holding talks with the B and conquer, say, all with the IRA or
:05:42. > :05:50.something like that. These are groups of people, some of whom want
:05:50. > :05:53.to talk, for whatever reason, many of whom do not want to talk, and
:05:53. > :05:58.indeed there is really every reason to think that those who don't want
:05:58. > :06:03.to talk of the ones that really are the decision-makers. Some years ago
:06:03. > :06:07.now, I suppose it is four or five years ago, I suppose, when these
:06:07. > :06:14.things started first to come up, I talked to somebody very senior in
:06:14. > :06:18.the Taliban, genuinely part of the leadership, and he said, why do we
:06:19. > :06:21.want to talk with the Americans? We are winning. Personally, I do not
:06:21. > :06:28.think they are winning, but nevertheless they think they are,
:06:28. > :06:32.and the logic of talking from their point of view is a less than it is
:06:32. > :06:35.from the point of view of President Obama, who is pulling his troops out
:06:35. > :06:40.and wants to make sure he goes out on a high note.
:06:40. > :06:44.Once again, John, thank you very much, John Simpson.
:06:44. > :06:47.After two days of talking in Northern Ireland, the G8 world
:06:47. > :06:51.leaders have reached final conclusions on Syria, global tax
:06:51. > :06:54.avoidance, and on fighting terrorism. There was broad agreement
:06:54. > :06:59.on the need to negotiate a settlement in Syria, but there was
:06:59. > :07:02.no mention of President Assad and his place in the country's future.
:07:02. > :07:06.President Putin of Russia warned against sending arms to be Syrian
:07:06. > :07:10.rebels, comparing them with the people who murdered Drummer Lee
:07:10. > :07:13.Rigby in Woolwich. Nick Robinson has this report.
:07:14. > :07:19.It is the most exclusive club on the planet, open only to the leaders of
:07:19. > :07:25.the world 's richest nations, but one question has hung over the still
:07:26. > :07:31.and beautiful waters of Lough Erne. As the G8 the will, the power to
:07:31. > :07:34.stop the latest conflict to ravage the Middle East? The public smiles
:07:35. > :07:40.belie private disagreements. Russia's often grim faced President
:07:40. > :07:44.Rudin has resisted pressure from his fellow leaders. -- Putin. They
:07:44. > :07:48.wanted him to sign up to a statement which made clear that the Syrian
:07:48. > :07:51.future cannot involve President Assad. He refused. The Prime
:07:51. > :07:56.Minister insisted, though, that all the G8 leaders wanted this message
:07:56. > :08:01.to be heard by those considering abandoning the Assad regime. What is
:08:01. > :08:05.important is to send a very clear signal to the Syrian leadership that
:08:05. > :08:10.we know Syria needs a functioning government, functioning departments,
:08:10. > :08:17.a functioning military and police force, it needs those things after
:08:17. > :08:19.Assad has gone. You cannot imagine a Syria where this man continues to
:08:19. > :08:22.rule, having done such dreadful things to his people, but these
:08:22. > :08:26.people also want stability, and they should know that this is what the
:08:27. > :08:31.international community has agreed. That was not spelt out in the G8
:08:31. > :08:35.communique, so what exactly did the leaders agreed on how to handle
:08:35. > :08:39.Syria and President Assad? The leaders say they will work together
:08:39. > :08:44.to stop the bloodshed in Syria, they will push for fresh peace talks in
:08:44. > :08:47.Geneva as soon as possible, and they will committed to destroying and
:08:47. > :08:51.expelling Al-Qaeda supporters. What they have not agreed on is the
:08:51. > :08:56.supply of weapons, and crucially they have not agreed on the future
:08:56. > :09:01.of President Assad. President Putin has signed up to very similar
:09:01. > :09:09.language in the past, but he has never spoken out against arming the
:09:09. > :09:12.Syrian rebels in a way designed to be more provocative than this.
:09:12. > :09:15.TRANSLATION: Recently the British people suffered a tragedy, next to
:09:15. > :09:20.his barracks on the streets of London a British serviceman was
:09:20. > :09:24.violently assassinated. Clearly, the Syrian opposition is not entirely
:09:24. > :09:29.composed of people like this, but many of them are exactly the same as
:09:29. > :09:36.the ones who perpetrated the killing in London. What was not hurt here is
:09:36. > :09:38.any detail of how and when President Obama will carry out American
:09:38. > :09:43.promises to give military support to the opposition. His only words on
:09:43. > :09:48.the subject came in an interview recorded before he left home.
:09:48. > :09:51.are folks who say we are so scarred from Iraq that we should not have
:09:51. > :09:57.anything to do with it. I reject that view as well, because the fact
:09:57. > :10:00.of the matter is that we have got serious interest there. To those who
:10:01. > :10:05.fear we are on the brink of a superpower proxy war in the Middle
:10:05. > :10:09.East, any agreement here will be welcome. Britain and America have
:10:09. > :10:15.toned down their rhetoric about arming the rebels. Russia, they
:10:15. > :10:18.hope, is ready to see the back of President Assad. The only question -
:10:18. > :10:23.is anyone in Syria actually listening? As the G8 leaders flew
:10:23. > :10:33.away from yet another summit, the question remained unanswered. Will
:10:33. > :10:35.
:10:35. > :10:39.Well, the G8 leaders said the deal on tax agreed at the summit would
:10:39. > :10:43.tackle what they call the scourge of tax evasion, giving government is
:10:43. > :10:47.automatic access to information about a resident's tax affairs.
:10:47. > :10:53.Rules will be changed to stop firms moving profits across national
:10:53. > :10:58.borders to reduce tax bills. Stephanie Flanders has more details.
:10:58. > :11:04.A grand commitment on tax from the world's most powerful leaders, but
:11:04. > :11:06.they know better than most that when it comes to who pays tax and how
:11:06. > :11:11.much, it is all in the small print. The declaration that has been signed
:11:11. > :11:16.here at the DH, we are committing all of these countries to exchanging
:11:16. > :11:20.information on people who try to evade their taxes, on making sure
:11:20. > :11:25.that companies know who owns them. And on making sure that companies
:11:26. > :11:29.cannot shift profits artificially to avoid tax. Grand promises, but what
:11:29. > :11:34.will they mean in practice? One key commitment was the promise of a new
:11:34. > :11:37.global standard for tackling tax evasion where authorities will
:11:37. > :11:41.automatically exchange information so that if a British national opens
:11:41. > :11:45.a bank account in a tax haven, the Inland Revenue would automatically
:11:45. > :11:49.find out. That would be a change from today, when they have to ask
:11:49. > :11:53.for that information in each individual case. To follow the
:11:53. > :11:57.money, Inland Revenue also needs to know who owns what, and that is
:11:57. > :12:00.where the second big promise comes in, to set up a central register of
:12:00. > :12:06.ownership and require every company to say who really owns and controls
:12:06. > :12:10.them. Campaigners welcome to both parts of the deal but wanted the
:12:10. > :12:15.leaders to do more to help developing countries benefit, and
:12:15. > :12:19.more creative tax planning for big multinationals. This is a first
:12:19. > :12:23.step, and it has been recognised in this declaration that companies need
:12:23. > :12:28.to declare where they pay their tax, how much tax they should pay, but it
:12:28. > :12:32.is only a first step, and we wanted to be publicly available so the
:12:32. > :12:37.public and the media can scrutinise that and make sure companies pay
:12:38. > :12:42.their tax early. By themselves, today's promises will not directly
:12:42. > :12:45.stop big multinationals using loopholes in the system to slash tax
:12:45. > :12:49.bills in countries where they do a lot of business. They talked today
:12:49. > :12:52.about getting rid of those holes, but that is a global problem even
:12:52. > :12:55.the G8 leaders cannot promise to solve any time soon, at least not
:12:55. > :13:05.until they have more countries around the table at the G20's summit
:13:05. > :13:08.The use of face down restraint in mental health hospitals in England
:13:08. > :13:12.could be banned. The BBC has seen evidence which shows the
:13:12. > :13:17.controversial technique is being used hundreds of times a year in
:13:17. > :13:25.some NHS trusts, a level described by a health minister as shocking and
:13:25. > :13:29.even excessive. Mark Easton has the details. This man's death in a
:13:29. > :13:34.mental hospital led to the American state banning the use of face-down
:13:34. > :13:41.restraints, but in England, in the 15 years since David Rocky Bennett
:13:41. > :13:43.died in similar circumstances, campaigners say there have been 13
:13:43. > :13:53.restraint-related deaths involving mental health patients and the time
:13:53. > :13:54.
:13:54. > :14:01.to ban is long overdue. It's dehumanising and at worst a death
:14:01. > :14:05.sentence. We don't want to see it in the NHS. Naomi knows what it means
:14:05. > :14:10.to be pinned to the ground and as a mental health patient she has
:14:10. > :14:14.endured the procedure many times. Most recently a few months ago.
:14:14. > :14:18.are terrified anyway and it makes you feel even more scared. You are
:14:18. > :14:22.supposed to be building up trust with the staff, but the way it's
:14:22. > :14:26.done quite often it means that that trust is broken completely.
:14:26. > :14:31.Face-down restraint should only be employed as a last resort, but
:14:31. > :14:35.figures show wide variation in the use. In 2011 it was not used at all
:14:35. > :14:38.by four English mental health trusts. While one trust in
:14:38. > :14:43.Northumberland used it over 900 times and another in Southampton
:14:43. > :14:47.over # 00. A number of trusts were unable to provide figures. -- 800. A
:14:47. > :14:50.number of trusts were unable to provide figures. A minister said the
:14:50. > :14:55.variation in the use of restraint is shocking and he's demanding answers
:14:55. > :14:59.from the two trusts who between them account for almost half the use of
:14:59. > :15:05.face-down restraint. I'm very interested in what Mind says about
:15:05. > :15:08.the idea of just banning face-down restraint. If that's possible, it
:15:09. > :15:15.should be done. Two of the trusts involved used then hundreds of times
:15:15. > :15:19.a year. I want them to address what appears to be a very considerable
:15:19. > :15:25.excessive use of restraint. In a statement, the Northumberland Trust
:15:25. > :15:30.said it only uses the most proportionate response. The southern
:15:30. > :15:34.Health Trust, said it is used to minimise discomfort and stress to
:15:34. > :15:38.staff and patients. Face-down restraint is no longer used in
:15:38. > :15:43.Sheffield, after the medical director of the most Trust there
:15:43. > :15:47.experienced the procedure for himself. Pretty unpleasant actually.
:15:47. > :15:51.Hard to breathe. We have taken a very determined stand to stop the
:15:51. > :15:56.use of face-down restraint throughout the Trust and it's not
:15:56. > :16:01.caused the problems that people thought it might. We have done less
:16:01. > :16:05.restraint and less see collusions. Professor cendal is reviewing
:16:05. > :16:14.official guidance and says the committee is likely now to consider
:16:14. > :16:18.whether an outright ban on them should be introduced. There has been
:16:18. > :16:25.a higher-than-expected rise in inflation, reaching 2. 7% in May
:16:25. > :16:31.from 2. 4% in April. The rise was at bueded to increases in the cost of
:16:31. > :16:34.food and clothing and air fares. -- attributed to increases in the
:16:34. > :16:39.cost of food and clothing and air fares. Millions of people took to
:16:39. > :16:44.the streets in Brazil, with violent clashes with police in Rio. Protests
:16:44. > :16:49.are over rising public transport costs, and the expense of staging
:16:49. > :16:52.the 2014 World Cup. In Lebanon, there has been more loss
:16:52. > :16:57.of life in the latest outbreak of violence between rival groups
:16:57. > :17:01.provoked by the civil war in neighbouring Syria. The conflict is
:17:01. > :17:06.becoming increasingly sectarian as Sunni rebels take on the forces of
:17:06. > :17:10.President Assad and his Shia supporters. As we now report, the
:17:10. > :17:16.fear is that this sectarian conflict will spread further across the
:17:16. > :17:18.region. The Lebanese army sent
:17:18. > :17:28.reinforcements when the clashes started. It's already stretched
:17:28. > :17:35.thin, trying to keep the peace. On one side where gunmen loyal to an
:17:35. > :17:40.extremist Sunni cleric, who has been stirring up tension. The other set
:17:40. > :17:45.of guns belong to a group that support the Shia militia, Hezbollah.
:17:45. > :17:52.The fault line runs through the Middle East. It's rumbling because
:17:52. > :17:55.of sectarian killing in Syria and exporting hatred and fear. The Army
:17:55. > :18:00.managed to calm things inside, orderering the gunmen off the
:18:00. > :18:05.streets, until the next time. The city remains tense. Every time
:18:05. > :18:09.there's an incident like this in Lebanon there are more fears that
:18:09. > :18:15.the nightmare of civil war that ended more than 20 years ago could
:18:15. > :18:19.return to this country. As ever, the Lebanese are not masters of their
:18:19. > :18:25.own destinies. They are buffeted by forces that come from abroad and
:18:25. > :18:31.they're finding it very hard to deal with what has been unleashed by the
:18:31. > :18:34.civil war in Syria. At the top of the ridge is Syria. It's war is
:18:34. > :18:43.leaking into all the neighbours, but down the mountain in the Beqaa
:18:43. > :18:47.Valley they feel it more than most. TRANSLATION: --This woman's son was
:18:47. > :18:53.a Hezbollah fighter and he was killed in April as Hezbollah battled
:18:53. > :18:57.against the Assad regime -- for the Assad regime against the allies of
:18:57. > :19:03.Al-Qaeda. TRANSLATION: We are up against something more important
:19:03. > :19:06.than Israel, the Nusra Front. If we don't take a stand, who will?
:19:06. > :19:13.Hezbollah's leader Sheik Hassan Nasrallah is a vital ally for
:19:13. > :19:18.Syria's President. Hezbollah has lost many men in Syria, but they've
:19:18. > :19:24.been hardened by years of fighting Israel and for now have the rebels
:19:24. > :19:29.on the runment they are Shia Muslims and share a background with Assad's
:19:29. > :19:34.Alawites. The war in Syria didn't start as a sectarian fight, but it's
:19:34. > :19:42.turning into one. That matters in Lebanon even in hospitals, because
:19:42. > :19:47.the sectarian divisions in this country mirror those in Syria. Not
:19:47. > :19:56.from Hezbollah strongholds in the town Sunni Muslims are being treated
:19:56. > :20:05.by a Lebanese Sunni charity. This rebel fighter from the Free Syrian
:20:05. > :20:08.Army said he was shot by a Hezbollah sniper. Trans war's spreading fast.
:20:08. > :20:16.Jordan, Lebanon and Iraq are affected, because no-one knows how
:20:16. > :20:20.to stop it. In Lebanon, peace depends on maintaining a delicate
:20:20. > :20:30.equilibrium between give groups. Syria's war means the formula isn't
:20:30. > :20:33.
:20:33. > :20:36.internet industry about blocking images of child sexual abuse on-line
:20:36. > :20:41.have made fundamental progress. Companies, including Google, Twitter
:20:41. > :20:45.and BT, have agreed to give an extra �1 million to the Internet Watch
:20:45. > :20:49.Foundation to search for abusive images rather than just responding
:20:49. > :20:57.to reports. It is estimated that there are one million unique images
:20:57. > :21:05.of child abuse on-line. 40,000 are currently reported every year.
:21:05. > :21:10.9,500,000 web pages are removed in response. -- 9,500 web pages are
:21:10. > :21:15.removed in response. Stuart Hazell and Mark Bridger used extreme
:21:15. > :21:18.pornography on-line. Today, internet companies and ministers met to
:21:18. > :21:23.discuss how to curb access to such material. They agreed new powers for
:21:23. > :21:27.the body which tries to remove it. The two recent paedophile cases,
:21:27. > :21:29.particularly, have brought this way up in the public consciousness and
:21:29. > :21:34.people really want something done about it and we can do something
:21:34. > :21:37.about it, not everything, but something. The Government said the
:21:37. > :21:41.inter Internet Watch Foundation would now be able to do more. The
:21:41. > :21:44.body, funded by industry, will receive another �1 million from
:21:44. > :21:50.internet companies. It's work involves acting on reports of child
:21:50. > :21:53.abuse images. It will now actively seek them out and it issues a black
:21:53. > :21:58.list for internet providers to block and now they're being encouraged to
:21:58. > :22:02.flash up a warning when users try to access such images. In public, the
:22:02. > :22:06.internet companies were polite about today's meeting, but in private they
:22:06. > :22:10.said there was little new about the measure unveiled. One executive, who
:22:10. > :22:14.was there, told me the politicians had shown frightening ignorance
:22:14. > :22:18.about the technical issues and he accused the Government of failing to
:22:18. > :22:25.provide sufficient funding to track down those behind the child abuse
:22:25. > :22:27.images. The job of prosecuting those who upload or view the images is
:22:27. > :22:31.done by Child Exploitation and Online Protection Agency, and their
:22:31. > :22:34.budget has been cut to �6 million, but the Government insists the work
:22:34. > :22:39.in this area has become more effective. We have got more people
:22:39. > :22:45.working on the front line, on the sorts of issues that are connected
:22:45. > :22:47.with child abuse and child exploileTation. What is important --
:22:47. > :22:49.exploitation, but what is important is Child Exploitation and Online
:22:49. > :22:56.Protection Agency are working in co-operation with the industry.
:22:56. > :23:00.Parents' groups want more action now. It's illegal content, so there
:23:00. > :23:05.needs to be funding to back up the agencies and the Internet Watch
:23:05. > :23:09.Foundation to make sure it's not there and people are prosecuted.
:23:09. > :23:16.campaign to eradicate the images is gathering pace, but finding them in
:23:16. > :23:23.every dark corner of the internet won't be easy.
:23:23. > :23:27.On thes -- from the freezing winter of 2010 to last year's soaking-wet
:23:27. > :23:33.summer, Britain has experienced unusual weather patterns in recent
:23:33. > :23:37.years, and today meteorologists have met to discuss the patterns and to
:23:37. > :23:40.consider whether they are part of a radical shift in global weather
:23:40. > :23:48.radical shift in global weather forms. A freezing winter three years
:23:48. > :23:52.ago. The country almost paralysed. Last year, one of the wettest
:23:52. > :23:57.summers on record. And we have just had the chilliest spring for 50
:23:57. > :24:01.years. This kind of thing has happened before, but rarely in such
:24:01. > :24:06.quick succession, so is there something behind this? Today at the
:24:06. > :24:10.Met Office in Exeter, they were puzzling over the swirl of colours
:24:10. > :24:14.representing the jet stream. It's the key to our weather. But not the
:24:14. > :24:19.whole answer, because what shapes the jet stream is a range of forces.
:24:19. > :24:24.The sun, for example. And the warmth of the oceans. Maybe man-made
:24:24. > :24:28.greenhouse gases as well, but no single answer has emerged. At the
:24:28. > :24:32.moment we really can't say. I know it's a disappointing answer for you.
:24:33. > :24:36.It's a disappointing answer for scientists to have this uncertainty,
:24:36. > :24:41.but I want to emphasise that in order to address that question we
:24:41. > :24:44.need to know what is loading the dice for the position of the jet
:24:44. > :24:49.stream. To understand our weather, the starting point is the jet
:24:49. > :24:54.stream. The river of wind flowing above the Atlantic. This is where it
:24:54. > :24:58.should be for us to get decent weather, but when it's south we get
:24:58. > :25:03.more rain, but what affects the course? The rapid retreat of arkic
:25:03. > :25:06.sea ice. The red line shows the average. That could be one factor.
:25:06. > :25:12.Or is it the temperatures and currents of the Atlantic Ocean? Heat
:25:12. > :25:15.in the ocean influences the air above. Finally, the sun, now in a
:25:15. > :25:22.more active phase can affect the upper atmosphere, or it could be a
:25:22. > :25:26.mix of all of these. Last year, the Arctic ice melted to a record
:25:27. > :25:30.extent. I saw for myself what happened. This may be a sign of a
:25:30. > :25:35.man-made influence in any event, but some scientists believe the scale of
:25:35. > :25:41.the change is so great that it must disrupt the circulation of air above
:25:41. > :25:46.it. We have this unprecedented decline in Arctic sea ice and it has
:25:46. > :25:50.a direct impact on the atmosphere above it. One is the atmosphere
:25:50. > :25:54.warming. But the patterns of winds and currents are incredibly complex.
:25:54. > :25:58.Working it all out is one of the toughest challenges in modern
:25:58. > :26:03.science. There's just so much that isn't known. The answer may even lie