Ifill and, we explain why two degrees is so important to those in paris looking to combat Climate Change. All that and more on tonights pbs newshour. Major funding for the pbs newshour has been provided by supported by the john d. And catherine t. Macarthur foundation. Committed to building a more just, verdant and peaceful world. More information at macfound. Org and with the ongoing support of these institutions this program was made possible by the corporation for public broadcasting. And by contributions to your pbs station from viewers like you. Thank you. Ifill at least 14 killed, another 14 wounded and up to three gunmen on the loose, in militarystyle outfits. That was the deadly tally today after the shootings at a social Services Complex in Southern California. It happened in San Bernardino, a city of more than 200,000 people, about 60 miles east of los angeles. Ifill it was late morning when heavily armed police and others raced toward inland Regional Center, moments after th