AP Interview: UN climate chief to negotiators: sleep, focus
![AP Interview: UN climate chief to negotiators: sleep, focus](http://bloximages.chicago2.vip.townnews.com/tdn.com/content/tncms/assets/v3/editorial/6/99/699e85b5-6b27-5622-a4b5-8ea8c5dfdd08/565ef98c1dcc5.image.jpg?resize=300%2C217)
LE BOURGET, France (AP) — The head of the U.N. climate change agency says high-intensity negotiations in Paris are on track so far and says her biggest concern now is that negotiators get enou…