An informal "list"/"tag" where we connect all US Congress members who openly support significant actions to address the global climate issue. Such support is evidenced through their vote or their sponsor of various bills, strong and unambiguous public statements etc. About the use of this LittleSis entity: We try and add a generic relation to this "organization" to all/any polititian or caucus who demonstrate strong support for legislative action to bring to bear effective green gas emmission reduction and other measures aiming at addressing the climate crisis. The generic relation is used to specify the nature of the support ('sponsor', 'endorse', 'advertise'...), showing the date when support started and free text in the notes for details when appropriate.