Joint Citizenship UK & USA ?

HI,
I am currently a UK citizen living in America on a green card.
Does anyone know where I can find out information on have joint citizenship between UK and USA ?
Thanks
Sarah

First of all, both countries accept dual nationality, so nothing prohibits you from applying for a second passport.

You may also check with both U.S. and British embassies for specific information affecting dual nationals.

Please ask specific questions for further info - perhaps we'd be able to help as well.