i need help with APA references page.

i have some articles and i need there references to be in a APA formating.

-  from http://www.livescience.com/38913-climate-change-has-arrived-in-california.html

-  http://news.nationalgeographic.com/news/2014/08/140812-california-climate-change-global-warming-science/

-  http://www.kqed.org/a/forum/R201308120900

- http://www.epa.gov/climatechange/basics/