the leaders of the world's top polluters reach what they call an historic climate agreement. hello from doha. this is the world news from al jazeera as violence continues in the occupied west bank, a rift reopens between palestinian political factions. protesters in mexico demand answers about the disappearance of more than 40 students. europe looks at a space record as it tries to make the

first-ever landing on a comet. hello everyone, the u.s. president obama and his chinese counterpart xi jinping have struck a landmark climate deal in beijing, they are the world's biggest pollutiers, and they agreed to decrease emitters. china did not specify a target. a new round will kick off ahead of a deal next year let's go to beijing, and talk to scott heidler, our correspondent there. tell us about the deal and what the leaders had to say. >> well, it is a big deal. it's something that really has been in the works, we are hearing now, after the announcement for the last nine months. this is something that has taken

time between both administrations, one in china, and one in the united states. they are ambitious. the united states had benchmarks. they want to reduce by a certain percentage, greenhouse gases. in 11 years, china said they want to reduce it, but have not put as many details on that. it's a landmark deal and new territory for china. this is how the leaders announced it today. >> i comment president xi, his team and the chinese government for the commitment they make to slow, peak and reverse the course of china's emissions. today i announce that the united states set a new goal to reduce greenhouse gas emissions by 26 to 28% below 2005 levels by 2025. >> reporter: targets for climate

change, after 2020, we agreed that we should promote talks after the 2015 conference in paris. >> i don't know how much of it is for show or not, but the two leaders are getting on well, putting on an affable public faith here. >> absolutely, and beyond the agreement that we heard the details of, it went into other areas, and touchy areas when it came to the country, human rights. it's a main thing that the united states stands for. they have criticized the chinese government. they also touched on cyber spying. that's been a touchy issue between the two nations. these things were brought up. the overall atmosphere over the news, the announcement, was that they came together. they are the two largest economies in the world.

they found through discussions even though they don't agree on everything. it's important globally, but globally they say it's better to coordinate if they don't see eye to eye. that went into the military realm because there's a lot of tension over the territory, and concern, frankly, as the tension increased obvious the last year and a half, two years, that there could be a misunderstanding and accident ending in conflict. that is something they brought up, that the two army's, two militaries will better coordinate and communicate. the two most powerful nations, if you are in the world saying we don't see eye to eye, but we'll come together and talk more to lead the world into a better way, a better place in particular. and that's when they decided this pollution reduction agreement scott heidler on what looks like an ironically blue-sky day

in beijing. thank you the u.s. president's next stop is in myanmar for an asean summit, the association of south-east nations. they are holding their first session in the capital. it's hosted by their president. economic issues and freedom across border are among the efforts to be discussed. >> expectations are high here as international leaders meet with the leaders of the south-east asian nation as myanmar steps into the spotlight to host a big summit as this. one of the top things on the agenda the mara time disputes and the south china sea for such a regional powerhouse china. we saw a more conciliatory tone when the u.s. president met with the chinese leader in beijing. he called on his allies to find a way to cooperate with china on

all matters so it can improve the regional peace and stability. that will mean a lot to nations like the philippines, who have been counting on the u.n. support when it comes to territorial disputes. the philippines is claiming a portion of that area as its own. in conflict with china and vietnam, which is claiming part of that sea, and malaysia. the philippines took the case to the u.n., and the international tribunal. china not wanting to participate, saying it was an unnecessary move. now with a call by the u.s. leader for all nations to sit down and find a way to cooperate. the philippines says it's a positive development. in no way does it impact the call. all in all everyone is saying that they are looking for a way to move forward and stablilize the country so that economic development can be more improved

as it comes into 2 mt 15, a time that as yep is looking to stand -- asean is looking to stand together president mahmoud abbas accused hamas of trying to sab tim efforts for university, and blamed the group for a series of bombings. during a speech marking the 10th anniversary of the death of yasser arafat. he signed a unity government agreement in april, ending years of division. >> translation: who committed the crime? the leadership of the hamas movement did. it's responsible. we don't want investigation by them. the actions relate to the moving of 100,000 back into their homes in winter. >> there's violence expecting to bring palestinian relations to a low. a palestinian man has been shot

dead by israeli forces during protests in the occupied west bank. imtiaz tyab has more from west jerusalem. >> reporter: a victim of the simmering tensions of the occupied west bank and israel. a palestinian man killed by a live round from israeli security forces as they broke up a protest near hebron. not all protests have been violent. the palestinians are students at the hebrew university in occupied east jerusalem. tensions ran high when a group of far right israeli students staged their own counterprotest. >> we are always oppressed. we are not allowed to do anything in the university. it gives us a freedom of expression. >> the feeling of oppression and treatment appears to be spreading. since sunday there has been widespread protests in is ray, and protesters -- israel, and protesters were angered by the

shooting of a palestinian teenager by police, after he assaulted them. on monday, an israeli soldier and woman was killed, and near an illegal settlement in the occupied west bank. >> it was the latest in a series of attacks. leading to a crackdown in palestinian areas by forces. >> these steps include reinforcement of forces on the ground. demolition of assailants homes. a firm hand and harsher punishment for stone throwers, out lawing those in jerusalem, and other sustains. -- steps. >> the palestinian law-maker says the anger is a symptom of a deeper problem. >> israeli law define israel as a jewish state, giving them a lot of privileges. so different 50 laws, and discrimination is legalized.

>> whatever the case, tensions are spreading and the israeli government appears to be making the situation worse. >> what they are doing now, they are leading the region and the world to a religious war, a devastating one. >> there are different issues causing the anger across east jerusalem, israel and the west bank. >> they are leading to discrimination and unequal treatment by the palestinians. >> three have been killed in fighting on the syrian border town of kobane. several people have been injured in an attack. kurdish fighters have been struggling to stop the town falling into i.s.i.l.'s control several people have been killed in syrian government air strikes. the attacks happened in duma,

injuring several people. the u.n. says the syrian president was considering a proposal to end fighting in parts of the country. >> meanwhile the u.n. says close to 14 million people have been displaced in syria and iraq. and the agency warns up to a million could miss out on winter aid. it said it needs additional money and more countries need to accept refugees. it can allow aid to delivered. >> a situation is more desperate than ever, however, the free syrian army is rejecting the ceasefire plan. we have more. >> reporter: this counteroffensive is about recapturing supply lines. syria's rebels need to win the battle to hold on to the neighbourhoods they control in aleppo. over recent weeks syrian troops close in on the main roads that

think the city to turkey. >> they have the rebel held east of aleppo surrounded. >> the regime is advancing. aleppo could be under siege and about to fall. that would be catastrophic. the islamic state of iraq and levant is on the other side. aleppo has been an urban battle ground and the government has targeted opposition areas. people are complaining about the rise in the price of gasoline and other goods. around 300,000 people are in rebel areas. the u.n. has what it calls an action plan to ease the suffering. the initiative has been discussed in damascus. he hopes it can start in aleppo. >> it's good, because the resolutions are requesting the stoppage of certain activities, which related to the conflict.

it could be a good example of how this could be implemented. >> reporter: aleppo threatened this, but it is seen as an opportunity. even though it would mean an unlikely alliance the government and aleppo fighting i.s.i.l. together. >> translation: the regime is advancing, aleppo could be under siege, about to fall. it could be catastrophic. the islamic state of iraq and levant is on the other side. >> reporter: i.s.i.l. controls the countryside in the north-east into aleppo. the rebels have been losing ground. not just the military, i.s.i.l. as well. as of late they face a new challenge. syria's al qaeda affiliate al nusra overran their areas in idlib. losing would mean losing areas to the opposition. the islamic state of iraq and levant would lose the last

strong hold in the north. the government and moderates have common enemies. it's not clear if they'd look at the conflict this way. >> six al qaeda fighters have been killed in a u.s. drone strike in southern yemen. it happened in the al qaeda strong hold. the military launched an offensive, accusing fighters of carrying out armed assassinations. several rebels have been killed in the news ahead on al jazeera, the u.n. reveals more poppies are being grown in afghanistan than ever before. we tell you why and the unsung heroes of the ebola outbreak. the volunteer burial team in

liberia. the top stories on al jazeera - the world's two biggest polluters - u.s. and china - agreed to reduce their carbon emissions. china has not set targets palestinian president mahmoud abbas accused the political rival of trying to sabotage efforts. and several people have been killed in syrian government air strikes in duma, north of the u.s. says president bashar al-assad is considering a proposal to end fighting in parts of the country the u.n. says opium cultivation in afghanistan has

reached a high. more land is used to grow poppies with farming up 7%. production of the drugs has increased 17% in the last year to nearly 6,500 tonne, which is 80% of the world's heroin supply. 850 million for the country. jennifer glasse has more from hull misunderstand province. >> this is helmand province in southern afghanistan where poppy production is flourishing. growing poppies has been big business in afghanistan. the united states spend $7 billion over the last 13 years to eradicate the drug. the u.s. government statements half a million acres of poppies are being grown across afghanistan. this distribute governor says business is booming in a drug bizarre, 10km from here. and says farmers are planting a

crop three times a year, rather than twice. and dozen of factories to process the drug provide employment and make the area less dangerous. >> the factories give money to the taliban, which finances terrorism. there's no jobs or education. people are tempted. how will they feed their families if they don't grow poppies? >> the governor of kandahar province says there a simple reason farmers u poppies. >> for poppies, the farmer doesn't need infrastructure. he doesn't need a bridge, road, market intelligence. nothing. he can carry 10 kilogram of poppy on his how older through a count main. >> it is affecting the biggest hydroelectric plant. >> the power station needs the water, so do the farmers down in the helmand valley, causing

tension. >> this power plant could produce more electricity badly needed in the electricity. if so much water was not syphoned off for agriculture. plant officials asked the farming authorities to reg u laut the flow -- regulate the flow. requests have been refused. the poppy farmers say that's fine, they don't need the electricity, they only want the water in mexico anger is growing over the fate of 43 missing students that disappeared in september. now a report from mexico city, some of the families of the missing feel they have gone back to square one. >> reporter: a pitched battle between police and protesters. it shows the intensity of anti-government demonstrations over the case of 43 students who disappeared in september. the protests grew after prosecutors announced last week that the students have likely been killed and dumped in the landfill site.

if the students are not, it may be too late. protesters are made up of teachers from a leftist union, and confrontations and authorities go back years. on monday they took over the international airport in acapulco. at one point a guerrero state security officer was held up by the teachers. >> translation: i'm not going anywhere, i'm not going anywhere. i want to avoid confrontation. i'm not leaving. i want to get organised into the work. >> reporter: later on tuesday mexicans carry out protests, one on piece or solidarity. >> the people come out here in the capital, holding a candle. they are tired of impunity, the killing, and what they want is justice. i asked this woman how mexico

could achieve that. >> translation: mexico needs termination, willingness, determination and love. that's what we need. >> the people in government want power, even if it means getting their hands bloody. we are tired. >> these 43 families represent the violence and the insecurity that mexicans are facing. >> instead of facing that violence, more and more mexicans decided to stand up and be counted. >> more than 200 protesters have been arrested in poland's capital warsaw. violence happened during the independence day celebrations. simon mcgregor-wood has more the trouble started when there was a march across this bridge. outside the national stadium hundreds of young polls, most right wing nationalists, some

with links to football gangs broke away and fought pitched battles with riot police. among the numbers there were right-wing activists from other country, players, fireworks were torn up, they were hurled at the police. the police responded with water canons, and pepper spray to push the rioters back. rubber bullets were in the air, and paramilitary forces were deployed. several people were injured, and over 200 were arrested. a growing until of pols have been drawn to nationalists and anti-immigration politics, fearing that polish factions are threatened. they are opposed to anything to do with the european union. years of slowdown increased the frustration of some, and there is a marked increase in numbers. >> in the past, rioters targeted the russian embassy, and those

associated with liberal factions. this year the focus was press. >> the number of new cases of ebola in west african countries may be stabilizing. people are dying. the world health organisation says more resources need to be put into the safe disposal of bodies. al jazeera joined a burial team in liberia. >> reporter: a group prayer before beginning another difficult day. this red cross burial team based in the capital monrovia has been called to a house. the body of a young man called robert has been left in an outhouse. >> this is not just a dead body. it's a disease. we are also very concerned about them. if you don't follow the protocol, you could be infected

and you could be a victim of the situation. >> the world health organisation says around 500 trained burial teams are needed to bring the ebola epidemic under control. in the three worst-hit countries, there's 140. many in the difficult and dangerous job are volunteers. >>: >> by the end of the day, the burial team's truck is full, the bodies are taken to a creme torium, and disposed of without ter moany. the treatment centers are another front line against the virus. this person recovered from ebola, and now works as a volunteer to help work with the sick. >> ebola, if you had it,:

>> reporter: so far more than 300 health workers in liberia caught the ebola virus. they are paid a few hundred dollars a month. >> it has to stop. $200, $300 an hour. we are paid $300 for what? >> in one of mon robia's densely populated areas, a man is spotted hiding on a rooftop. fear is running high and neighbours suspect he has ebola, and threatened to take matters into their own hands. >>:

>> reporter: the man agrees to come with health workers to the hospital. there are signs, the number of new cases of ebola in liberia are going down. experts say it's too early to say whether progress has been made or if the worst is still to come. nigeria's president jonathan goodluck formally announced his re-election, a day of a suicide bomber killed 50 people at a school in the north-east. the armed group boko haram has been blamed for the attack. now, europe's mission to land the first space probe on the surface of a comet enters final phase. last minute checks have passed. it's taken 10 years for one of the most complex missions history. we explain. >> reporter: the rosetta spacecraft travelled for more than 6 billion kilometres in

pursuit of a comet. it orbits the sun every 6.5 years, passing inside the orbit of mars. if all goes well, it will have a visitor from earth along for the wry. >> here it is, the comet. it's 4km wide and trailing through space at over 65,000km an hour. quite a feat to catch something like this. since august, rosetta has been orbiting the commet. sicientists are working out whee they could land it. they chose a flat area with sun light for the solar panels. it has little gravity. special technology is required. >> there's a risk that it will bounce back. the point is to deploy, first, that landing with special

landing gear, three legs which are shock absorbers, and deploy a harpoon, and making sure that the lander is attached to the surface. >> there's special scientific equipment. the rocks on the comment are believed to predate our solar system, something that scientists will be able to investigate. when comets come past the earth we are interested in the gases and the chemistry, primoshial chemistry. we'll get close and sample a comet for the first time and do the measurelets in situ. >> scientists suggested much of the water on earth comes from comets, they believe they may have brought complex molecules with them. what they find on 67 p could

give us clues into the origin and evolution of not just of the solar system, but life on earth and plenty more news for you online at aljazeera.com. including the campaign to free our journalists in egypt. >> the need is massive. the purpose noble. after the widespread problems were there, there is a new manager in charge who is promising change. fixing the veteran's administration is the inside story. >> hi, i'm lisa fletcher. it is no stretch to say that the department of veteran's affairs has a trust problem.