Here are a couple of sites that might help you tell a story about climate change, global warming:
The first one is from the Society of Environment Journalists called Climate Change: A Guide to Information and Disinformation. It’s a primer with basic scientific information, links to environmental groups, how to sift through disinformation and a list of experts to call.
In fact, here’s their list of experts. The list is broken down by area of expertise and gives you biographical information, email addresses and phone numbers.