WATERVILLE — Sustain Mid Maine Coalition’s Education Team will present free presentations by Alder Stone Fuller. about abrupt climate change.

The following presentations are planned:

* Barrels, Main Street, Waterville from 6 to 8 p.m. Thursday, Feb. 2, and from 6 to 8 p.m. Thursday, Feb. 9

* Waterville Public Library from 6 to 8 p.m. Monday, Feb. 13.

For more information, visit alderstone3.com.