The Mass. Climate Action Network has opened registration for its yearly gathering, which has moved a bit westward, which is to say the center of the state: Clark University in Worcester, on Oct. 24. Admission is $60, but several types of discounts are available.

Author and activist Bill McKibben [above] wasn’t only preaching to the choir when he addressed the annual meeting Sunday of the Mass. Climate Action Network, he was among the adoring.

Mass. Power Shift is leading a rally against coal, and for renewable energy, on the south steps of the State House tomorrow, Saturday, from 3-4 p.m. 

The specific issue is a resolution in the legislature calling for the federal government to power America with 100 percent clean electricity within 10 years. Speakers will include resolution sponsors Sen. Marc Pacheco and Rep. Frank Smizik, as well as student and community environmental leaders.