For generations, Pittsburgh was known as "Smoky City." These residents say they don't want to return to those days. http://cnn.it/2qPKIQ0 pic.twitter.com/dBqD8qNsx9

Washington, California, New York band together to form climate alliance http://politi.co/2qJwjFO pic.twitter.com/T1941x70ko

It’s not fun facing @ClaytonKersh22. But it is a TON of fun to watch him: http://atmlb.com/2qJPz5W pic.twitter.com/J3aIrTSv7d

YouTube Reaches 1 Trillion Racist Comments http://trib.al/s6ObVko pic.twitter.com/6cxdQSbBGK

To celebrate the release of "Wonder Woman," we looked at other bada-- female characters in film http://bit.ly/2ruljgG pic.twitter.com/cikJxdkGYA

Who you throwing to, ref? #SCNotTop10pic.twitter.com/qUEAvFwYnr

"If they never get back to another Super Bowl, it’s going to be pretty disappointing.” #DDFP: http://on.nfl.com/nipvkv  (via @Dameshek)pic.twitter.com/pDqGejA0aV

I spent album release day giving my album out to my favorite people :) I can't stop smiling. @DonsLenspic.twitter.com/Z3n2ujEPKG

New US visa questionnaire asks applicants for social media handles from the last 5 years: report http://hill.cm/mXILPs9 pic.twitter.com/afC9ccLw4Y

This month's the 15 year anniversary of Let Go! Here's a clip of the one that started it all- Complicated. THANK YOU to all my fans!pic.twitter.com/OzIkY9QfdO

No, no, KO. MMA fighter taunts opponent then gets slept with kick to head : http://ble.ac/2so5Kab pic.twitter.com/4Pc3cSYJNc

politics and pizza two personal passionspic.twitter.com/6RX5l4fbtl

There's so much CO2 in the atmosphere that planting trees can no longer save uspic.twitter.com/GzEeFKxDjb

#GTAOnline: Gunrunning New screens featuring Underground Bunkers, Mobile Operations Centers and Weaponized Vehicles http://rsg.ms/aa73168 pic.twitter.com/phKvOsFtPX

But really, @BillMaher has got to go. There are no explanations that make this acceptable.pic.twitter.com/K5XlEjekQ9

This is Zoey. She really likes the planet. Would hate to see willful ignorance and the denial of fairly elemental science destroy it. 13/10pic.twitter.com/T1xlgaPujm

World: the Empire State stands with you. New York shines green for our planet, our health and our children's future. #ParisAgreementpic.twitter.com/Ubw7WSPgu0

This viral riddle is giving everyone on the internet a headache http://bzfd.it/2s4JHW6 pic.twitter.com/Jn3DEtkXvn

Taylor Motter joins Alex Rodriguez (who did it in 1996 and 1999) as the only Mariners shortstops with multiple grand slams in a season.pic.twitter.com/ic7ZFqvI6j

Four games, two goals - including the all-important opener in Stockholm. Congratulations to our Player of the Month for May, @PaulPogba! pic.twitter.com/CAW7mQWVMS

Just holdin on w/ @Louis_Tomlinson #lalifepic.twitter.com/itK8hCnOTF