Three things you should know:

Schools were more racially integrated three decades ago than they are today. UCLA Professor Pedro Noguera tells us how our diminishing investment in urban public schools is failing kids.

Woolly Mammoths might just roam Siberia once more. Author Maura O’Connor explores the great lengths conservationists are willing to go to save the environment and preserve its wildlife.

Reducing homelessness doesn't mean opening up more shelters and soup kitchens. Becky Kanis Margiotta explains why avoiding traditional barriers to housing and get people into permanent homes first is the way to go.