I also recommend Eco-Logical and Climate Concerns, since the climate is changing so drastically. As an Environmental Regulation professional your voice will be valued.
After you've searched for topics of interest in "Groups" above and in the "Forums", don't forget to look at recent activity which hides along the right margin of the page all the way at the bottom.
On a personal note, I've developed an animated gif technique, sort of “pull quote marries slideshow”. Samples are scattered across various groups, but you can find them easily by going to my twitter account. Each tweet has a link (after the description and before the hashtags) to a visually rich example here at Atheist Nexus. If you like them, please follow me
Thanks for the welcome, gang. I'll probably sniff around for a bit to get comfortable before I get too active. Though I did just now receive a very interesting link ... might have to share it over in one of the more sciency threads