Unreservedly, one of the voices I respect most on issues of sustainability as it regards buildings is Marc Rosenbaum, a curious mix of wonk and Luddite. (When he announced that he'd started a blog, he assured his correspondents that he still didn't have a cell phone.)

But he does now have a blog, detailing his move to Martha's Vineyard and new housing, and how he is approaching the retrofit. These are adventures I'm eager to follow — and how I wish I could include Thriving On Low Carbon in my blog reader, but he appears not to be set up for that.

So here's the address.

The Canadian academic, broadcaster, and activist David Suzuki is the sort of person people follow. As I read an interview he gave on his 75th birthday to Joseph Roberts at commonground.ca, I kept thinking, "wow, that's good. I should share that." So here are some excerpts:

Though visitors to 100 Terrace St. in Roxbury could be forgiven for not knowing that the Building Materials Resource Center and the Boston Building Materials Co-op are different entities, the two soon will be one and the same, under the name Boston Building Resources.

“We are making this change to make it easier to explain who we are and what we do,” said Matthew St. Onge, Boston Building Resources executive director. “The public has often seen us as a single organization because our names were so similar, and because the work of both organizations often overlaps."

I've written about Good magazine's graphics before, mostly when a series was distributed by Starbucks before the '08 presidential election. This one is done in conjunction with 350.org — and to my way of thinking, nothing bad could come from a collaboration between those two entities.

My longest-standing readers know that I started out blogging on topics of sustainability, which I rather narrowly defined as issues around energy use. Gradually, I shifted to food issues because I wanted and needed to support my book, "Fat Boy Thin Man."

In the transition, I saw how sustainability, defined as the dictionary does, rather than cloaked in the meaning "we" have attached to it, applies in so many ways to food. Yes, my thinking was absurdly narrow.

As you know, I've shifted my focus from the part of sustainability that many think of as green to the part that addresses obesity and food addiction. But I still have great fondness and concern for those topics.

When I was actively pursuing them, I found no greater source, or concentration of information, than at the annual Building Energy show put on by the Northeast Sustainable Energy Association.

Do I have hope? Yes, I have hope because, as Michael Pollan wrote in "The Omnivore’s Dilemma," what it means to say that something is “unsustainable” is that it will stop. And we have an unsustainable food supply.

The speaker is Joan Dye Gussow, "the mother of the sustainable food movement," as ID'd by writer Paula Crossfield, setting up her interview on Grist (and, previously, on  Civil Eats).

"This has been a true expression of the deep sense of betrayal many [blanks] feel about [blank]'s lack of effective action on climate change," said Georgina Woods, spokesperson for the demonstration. "We voted for this government so they would stand up to the big polluters, and lead the world on dealing with the impending climate crisis."

"Instead, [blank] has perfected a marvellous line in greenwash, the polluters are getting taxpayer handouts and under the legislation currently before the Senate, [blank] will not have to cut domestic emissions one jot."

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.

Writer/filmmaker/activist/stuntman Colin Beavan will be in Boston this week promoting his movie, "No Impact Man," which opens today at the Kendall.