reporter: entrepreneur som narayan encounters new dumping sites daily.there you go, there's other spotot there. ththere have beeeen organizats that work onon clearing ththose tetes, paiing g themp, makakin it clean, but then again it reappears after 15 days. repoporter: the enenvironmenll engineerer has come up with hs own solution to reduce the city's waste. he's joined forces with padmashree balaram to set up a biogas facility. som: i think they are following instructions very well. padmashree: yeah, i think so. hopefully it should continue. reporter: the organic waste from padmashree balaram's neighborhood, which would normally go to a landfill, is instead brought here as a raw material. the trash has to come in well sorted.. otherwise, it means higher operational costs and less biogas. today, her efforts pay off. padmashree: 3% is good, ok. som: this is nearly 100%, right? there's about 5% to 10% that needs to be stripped out, like the flowers and all that which has s very high lignin conten, but i would rate this extremely good. i mean, this is now

drowning in it the population has grown rapidly the infrastructure hasn't kept pace entrepreneurs so narayan has not enough he's teamed up with chemistry teacher padmashree battleground to encourage residents to separate their trash. he collects it as rule material. we're producing as an end product is about 90 to 94 percent of meat him which means it's much better than natural gas it can displace any fossil fuel. for all of these and so again the day we're creating of a clean clean renewable energy great. potential for bio gases huge normally $5000.00 tons of trash a day and in landfills and salters it's not only a waste of raw materials. it's the most unscientific waste our tax. causes d.v.d.'s the pollution creates again which is. a source creating. some marion wants to see less gaba jenning up in landfills and more of it recycles it would certainly boost his business he already has several plants in operation. this one process is over 13 terms of food waste a day for mighty and industrial parks under to created 70 jobs. to have. with. the business of. creating more jobs. so much already

. >> reporter: christmas morning, president trump's national security adviser robert narayan and armyre among those honoring him. 28 americans killed in combat in afghanistan this year. deployed to afghanistan three times, received four bronze stars. the surgeon leaves we had a partner, jen, and a daughter, zoe. bombing his vehicle when they were in afghanistan. this comes as the u.s.-led peace talks with taliban. the united states is never going to let him guide us in become a safe haven for terrorists. at least that mission is complete, we will retain a person to do that. >> reporter: 13,000 u.s. troops remain in afghanistan. the height of you that u.s. military involvement in 2010. probably 500 were killed that year. few words troops could spend next christmas afghanistan, depending on the decision of nearly 4000 troops out. >> all these plays were i can free up troops, bring them home, allow them to rest, refit, retain and then reallocate them in the pacific to compete with the chinese. >>> with only 7000 u.s. troops deployed africa, they say there are not many troops to cut. ahea