The latest polling from the Sierra Club and Morning Consult shows Biden receiving 31 percent of the vote among voters who consider climate issues “very important” while Warren gained 25 percent of the vote.
Warren’s numbers represent a 4-point increase from the same poll in August, picking up 3 points on Biden who went up 1 percent in that same time frame.
The numbers show a steady climb for Warren on the issue after polling at 15 percent in the same poll in June. Biden was at 37 percent in that poll.
Warren’s climate plan has become more robust since the last round of polling.
In September she announced she would adopt the plan proposed by “climate candidate” Gov. Jay Inslee (D-Wash.) who had recently dropped out of the race. Those policies were added to her existing plans for public lands and green manufacturing.
The poll was conducted with 1,500 Democratic voters in the last week of September, including 936 “climate voters.” The poll has a margin of error of plus or minus 3 percentage points.