The faculty and staff at the Southern California Environmental Health Sciences Center, are glad this is a day to bring attention to our earth and the ways that we can take action to help sustain it in the present and especially the future.

Today, over 170 at the United Nations are signing a historic climate agreement. You can watch their live and recorded coverage below.

To take action on a local level in California, you can click through to this website and find out what is going on in your local area. For events in the Los Angeles area, the Los Angeles Times provides some suggestions here.