villaseÑor. boy: my names adiglia bra. acrding to aecent un report., every bit of infrastructure we build now will lock in gas use long into the future. arvind: new infrastructure, things like power plants or lng terminals have a typical lifetime of 30 years. reporter: this is arvind ravikumar, who researches how to lower emissions in the energy sector. arvind: so when you build a plant right now in 2022, its operational lifetime will extend to 2052. and the question is, we do need natural gas now, we are using natural gas now. but will that natural gas and will that infrastructure be useful 30 yes from now? reporter: but despite all these warnings, it seems to be pretty much business as usual. a recent investigation by the guardian revealed that oil and gas companies have plans to massively expand their production. again, we put this to the gas industry. thiogp said using s to replace coal is a no-brainer. and that it's the job of energy companies to meet demand. and the job of governments to change that demand. the u said that gas is critical for an

reporter: on one side of this building are college students, like roommates kayla patino and katela villasenorn the other side? nuns. >> most students coming to university don't anticipate living with nuns. dersonay wn studthous short supl neumann university outside philadelphia, she and her sisters offered a wing of their convent. katela says it's like having a second family. >> they have so many stories, stories for days-- funny ones, serious ones, wise words. >> we are gaining so much from the presence of the students here-- life, energy, and activities that we might never have sought out. >> reporter: like tiktok. ♪ ♪ ♪ >> they didn't even know what tiktok was. they were eager to learn. they were like, "okay, we can make a tiktok, too." >> reporter: are you a dancer? >> i'm an irish dancer. i've seen a few tiktoks on facebook. i've never been part of one. i have been doing some limbering up just in the event. >> reporter: friends united in a special sister solidarity. nikki battiste, cbs news, aftin, pennsylvania. >> i like that one! >> duncan: i have a feeling the parents don't mind that

reporter: on one side of this building are college students like roommates kayla patino and katela villasenor other side, nuns. >> most students coming to university don't anticipate living with nuns. >> reporter: sister esther anderson says when student housing was in short supply at neumann university outside philadelphia, she and her sisters offered a wing of their convent. katela says it's like having a second family. >> they have so many stories, stories for days. funny ones, serious ones, wide words. >> we are gaining so much from the presence of the students here, life, energy, and activities that we might never have sought out. >> move it! >> like tiktok. ♪ >> they didn't even know what tiktok was. >> they were eager to learn. they were like, okay, we can make a tiktok too. >> are you a dancer? >> i'm an irish dancer. i've seen a few tiktoks on facebook. i've never been part of one. i have been doing some limbering up just in the event. >> reporter: friends united in a special sister solidarity. nikki battiste, cbs news, aston, pennsylvania. >> i like that one. >>> and that is the ove