Gas is flared as waste in March from the Monterey Shale formation where gas and oil is extracted using hydraulic fracturing, or fracking, near Buttonwillow, California. - 

A United Nations panel of experts has looked at 12,000 peer-reviewed scientific studies and its latest report warns of "severe, pervasive" effects, from climate change. Among the effects, deepening poverty and problems with the food supply. Matt McGrath, environment correspondent for the BBC. joins us from Yokohama, Japan where members of the UN panel have been meeting.

Meanwhile, a grab bag of 55 tax benefits expired at the end of last year, and Democratic Senator Ron Wyden of Oregon, the new chairman of the Senate Finance Committee, wants Congress to reinstate them.

Tens of thousands of the babies born each year had a extra little help along the way from in vitro fertilization, where the sperm and the egg first meet in a piece of medical equipment.  Often in vitro clinics will transfer more than one embryo at a time. But a new statement from the National Perinatal Association says this practice can cause problems for mothers and babies.

Follow David Brancaccio at @DavidBrancaccio