genie: to china, where 100,000 people have been stranded in the southern city of guangzhou, after snow forced the cancellation of 80 trains. there are millions of chinese people making their way home for the chinese new year holiday, which starts this weekend. here's oliver farry. ,liver: it is an annual exit the biggest movement of people on the planet. china -- chinese migrant workers are making their way back across the country to get home for chinese new year. the migration season lasts until early march, with an estimated 2.9 million people expected to travel. for these young people from the provinces, the hectic traveling schedule is worth it to get a taste of home. spring festival is a traditional festival for chinese people. actually, for us young people who work away from home, we also hope to provide a better life for our families. when i have saved some money and go home, it makes my parents very happy because we get together. i only go home once a year to spend time with my parents, so i am also very happy. in northeastern china, we often celebrate together. doug: chinese p

the busiest time i travel in china is the lunar new year holiday and it has been a nightmare in guangzhouple have stranded at the railway station. snow has kept trains from arriving. global news, 24-hours a day, powered by our 2400 journalists around the world. .rancine: thank you it is the largest takeover by a chinese company ever. chemchina agreed to buy swiss company syngenta. by aaron kirchfeld . i was thinking today, what does this affect? china is serious about having access to technology so that it can feed the biggest technology on earth. syngenta's share prices didn't go up much, so that tells me there are regulatory concerns. chemchina we have been asking why syngenta is trading so low. traders and investors are at thisand are looking with antitrust questions. they have made the offer and it is the biggest chinese acquisition of all time if it goes through, but we have to see if they can pull it off. francine: it is the chinese state-owned companies so it would pose security risks? aaron: that is the way to look at it. in the u.s., does it have facilities? u.s.s to be approved

more than 1.4 million passengers left guangzhou by train, setting a new record.travelers prepare for the long journey home. >> reporter: just take a look around. these people are waiting patiently, but they have been waiting all year for this moment. for so many of them, this is the one and only time of the year where they'll get to go home. they'll see their friends. they'll see their family members. which is what makes all of this the largest annual migration of people on the planet. here in china, it's called the spring festival, and it includes the lunar new year. so everyone is scrambling to get home by new year's eve. there will be 332 million train trips taken across china. these people have all had to buy their tickets weeks in advance. for a lot of them, the journey won't just take hours, it will actually take days. the trains leaving the station here is in southern china are some of the busiest. it's a manufacturing area. the workers come from all over the country, which means that the journey home can start with one train ride being followed by a few m