Give by Phone, Fax, or Mail

Give by phone

Call us at 1-800-666-8276 between 9 am and 5 pm (Eastern time). We can take your donation with a VISA, MasterCard, American Express, or Discover. At other times, you may leave a message and we’ll return your call.

Give by mail or fax

Simply print and fill out this form and mail to:

Union of Concerned Scientists
Two Brattle Square, Suite 6
Cambridge, MA 02138
Attn: Membership
Or fax to: 617-864-9405